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Metro Collision Analysis 2021MPOJC Urbanized Area Traffic Collision Analysis 2017-2019 2 3 Metropolitan Planning Organization of Johnson County Published October 2021 Kent Ralston, Executive Director Emily Bothell, Senior Associate Transportation Planner Frank Waisath, Associate Transportation Planner Brad Neumann, Associate Transportation Planner Sarah Walz, Associate Transportation Planner Analysis Completed By: Hannah DeBruin, Transportation Planning Intern 4 THIS PAGE INTENTIONALLY LEFT BLANK 5 Table of Contents Introduction 7 Evaluation Procedure and Assumptions 7 Highest Collision Locations 10 Highest Ranking Intersections 10 Highest Ranking Mid-Block Locations 10 Analysis of 10 Highest Ranking Intersections 11 Analysis of 5 Highest Ranking Mid-Block Locations 12 Urbanized Area Collision Location Map 13 Highest Ranking Collision Locations by Jurisdiction 14 Highest Ranking Collision Location Maps by Jurisdiction 15 Per Capita Collision Comparisons 19 Top Three Major Causes of Collisions by Jurisdiction 20 Major Cause Summary by Urbanized Area and Jurisdiction 20 Potential Countermeasures 28 Appendix: Complete Intersection and Mid-Block Rankings 31 6 THIS PAGE INTENTIONALLY LEFT BLANK 7 This report identifies high collision locations in the Iowa City Urbanized Area for the years 2017 through 2019. The Iowa City Urbanized Area includes Coralville, Iowa City, North Liberty, Tiffin, and University Heights. The goal of this report is to increase awareness of high collision locations so that MPOJC member agencies will be able to identify projects designed to reduce collisions. The data used in this report was sourced from the Iowa Department of Transportation (Iowa DOT). Iowa DOT obtains copies of collision reports from local jurisdictions to compile a database called the Crash Mapping Analysis Tool (CMAT). This report utilizes the most complete and current data available for 2017-2019. Evaluation Procedure Collision information was summarized for intersections and mid-block locations within the Iowa City Urbanized Area. Locations with three or more collisions were evaluated for this report; these summary tables can be found in the Appendix. The total number of intersections (with three or more collisions) in the Urbanized Area is 247. The total number of mid-block locations (with three or more collisions) is 120. Each location is ranked using the Iowa DOT Office of Traffic Safety weighted formula. The formula has three data inputs: number of collisions (weighted at 25%), crash rate (weighted at 25%), and severity of the collisions (weighted at 50%). The three inputs are discussed in detail below. 1. Number of Collisions – This is the total number of collisions per location obtained from CMAT during the years 2017-2019. Based on the number of collisions, each location is given a score. Points are assigned as shown in Table 1. 2. Crash Rate – Crash rates allow each location to be evaluated with a common denominator. Intersection crash rates are calculated using the number of collisions per million entering vehicles divided by the total entering vehicles at a given location over the three-year time period. (#πΆπ‘™π‘™π‘™οΏ½β„Žπ‘ŸοΏ½β„Žπ‘™π‘™π‘Ÿ)βˆ—1,000,000 (#πΆπ‘Žπ‘¦π‘Ÿ)βˆ—(π‘…π‘™π‘Ÿπ‘Žπ‘™ 𝐴𝐴𝐢𝑅 π‘’π‘™π‘Ÿπ‘’π‘ŸοΏ½β„Žπ‘™π‘– οΏ½β„Žπ‘™π‘Ÿπ‘’π‘Ÿπ‘Ÿπ‘’π‘π‘ŸοΏ½β„Žπ‘™π‘™) Mid-block location crash rates are calculated using the number of collisions per million vehicles divided by the total entering vehicles at a given location and segment length over the three-year time period. (#πΆπ‘™π‘™π‘™οΏ½β„Žπ‘ŸοΏ½β„Žπ‘™π‘™π‘Ÿ)βˆ—(1,000,000) (#πΆπ‘Žπ‘¦π‘Ÿ)βˆ—(π‘…π‘™π‘Ÿπ‘Žπ‘™ 𝐴𝐴𝐢𝑅)βˆ—(π‘…π‘’π‘–π‘™π‘’π‘™π‘Ÿ π‘™π‘’π‘™π‘–π‘ŸοΏ½ οΏ½β„Žπ‘™ π‘™οΏ½β„Žπ‘™π‘’π‘Ÿ) These crash rates are assigned points as shown in Table 1. 3. Severity – Collisions are categorized by: property damage only, possible/unknown personal injury, minor personal injury, major personal injury, and fatality. These types of collisions are given a weight of 1, 1, 3, 5, and 12, respectively, and then totaled to give each location a severity raw score. These raw scores are converted to a severity score as shown in Table 1. Introduction 8 Table 1: Evaluation Points Number of Collisions Crash Rate Severity Collisions Points Rate Points Raw Score Points >29 15 >3.5 15 >56 15 27-28 14 3.26-3.5 14 53-56 14 25-26 13 3.01-3.25 13 49-52 13 23-24 12 2.76-3.0 12 45-48 12 21-22 11 2.51-2.75 11 41-44 11 19-20 10 2.26-2.5 10 37-40 10 17-18 9 2.01-2.25 9 33-36 9 15-16 8 1.76-2.0 8 29-32 8 13-14 7 1.51-1.75 7 25-28 7 11-12 6 1.26-1.5 6 21-24 6 9-10 5 1.01-1.25 5 17-20 5 7-8 4 0.76-1.0 4 13-16 4 5-6 3 0.51-0.75 3 9-12 3 4 2 0.26-0.5 2 5-8 2 3 1 <0.25 1 <5 1 After points are assigned for the three categories, points are then entered into the Iowa DOT weighted ranking formula as shown below. π‘…π‘™π‘Ÿπ‘Žπ‘™ π‘…π‘π‘™π‘Ÿπ‘’=πΆπ‘™π‘™π‘™οΏ½β„Žπ‘ŸοΏ½β„Žπ‘™π‘™ π‘ƒπ‘™οΏ½β„Žπ‘™π‘Ÿπ‘Ÿβˆ—0.25 +πΆπ‘Ÿπ‘Žπ‘ŸοΏ½ π‘…π‘Žπ‘Ÿπ‘’ π‘ƒπ‘™οΏ½β„Žπ‘™π‘Ÿπ‘Ÿβˆ—0.25 +π‘…π‘’π‘£π‘’π‘ŸοΏ½β„Žπ‘Ÿπ‘¦ π‘ƒπ‘™οΏ½β„Žπ‘™π‘Ÿπ‘Ÿβˆ—0.5 All of the intersections and mid-block locations were then organized from highest to lowest rank. These tables are located in the Appendix. 9 Intersection Locations The following are the assumptions made for collisions at intersections: β€’ The number of collisions occurring at an intersection is determined by a buffer of 200 feet +/- 50 feet from the intersection of streets. β€’ Sideswipes involving Failure to Yield (FTY) will be included, whereas sideswipes for vehicles traveling the same direction will not be included (i.e. changing lanes, collisions involving a parked car). β€’ If the data record is incomplete regarding the manner of the crash, but still involves two vehicles, it will be counted. β€’ If the roadway type is a private commercial/residential drive, the crash will not be counted. β€’ If the roadway type is a non-intersection but the manner of the crash is likely caused by the intersection (i.e. rear-end) the crash will be counted. β€’ Collisions involving one vehicle will be counted if the collision is classified as intersection- related. Midblock Locations The following are the assumptions made for collisions at mid-block locations: β€’ Only non-intersection collisions are considered. Road intersections with bike/pedestrian facilities, railroad crossings, cloverleaf freeway ramps, and alleyways will not be counted as intersections. β€’ Crashes on exit/entrance ramps for interstate freeways will not be counted. β€’ Major Causes will not include: ran traffic signal, FTY at uncontrolled intersection, FTY making right turn on red signal, FTY from yield sign. β€’ Collisions involving only one vehicle will be counted if they are not intersection-related. β€’ Sideswipes while vehicles were traveling in the same direction will be included (i.e. changing lanes, hitting a parked car), while sideswipes involving FTY at an intersection will not be included. β€’ If the data record regarding the manner of the crash in incomplete, but involves at least one vehicle, it will be counted. β€’ If the roadway type is a non-intersection but the manner of the crash is likely caused by the intersection (i.e. rear-end) the crash will not be counted. Assumptions 10 The ten highest ranking intersections and five highest ranking mid-block locations in the urbanized area are listed below. These are also shown on the location map on page 13. For the ranked list of all metro intersections and mid-block locations including weighted collision scores, please refer to the Appendix. Table 2: Ten Highest Ranking Intersections ID Jurisdiction Intersection Location Intersection Rank 1 Iowa City Highway 6 & S Gilbert Street 1 2 Iowa City Highway 6 & Sycamore Street 2 3 Iowa City Highway 6 & Boyrum Street 3 4 Coralville Oakdale Boulevard & Coral Ridge Avenue 4 5 Iowa City Burlington Street & Gilbert Street 5 6 Coralville 2nd Street & 1st Avenue 6 7 Iowa City Riverside Drive & Highway 1 & Highway 6 7 8 Iowa City Burlington Street & Madison Street 8 9 North Liberty Kansas Avenue & Penn Street 9 10 Iowa City Riverside Drive & Benton Street 10 Table 3: Five Highest Ranking Mid-Block Locations ID Jurisdiction Midblock Location Midblock Location Rank 1 Coralville 2nd Street between 1st Avenue & Hawkins Drive/Rocky Shore Drive 1 2 Coralville 2nd Street between 25th Avenue & 23rd Avenue 2 3 Coralville 2nd Street between 4th Avenue & 1st Avenue 3 4 Iowa City Highway 6 between Valley Avenue & N Riverside Drive 4 5 Coralville 2nd Street between Camp Cardinal Boulevard & 20th Avenue 5 ID is a unique tag for each intersection and mid-block location signifying the overall ranking within the urbanized area. Intersection or Midblock location Rank signifies the location’s rank considering the whole urbanized area. Highest Collision Locations 11 1. Highway 6 & Gilbert Street (Iowa City) 24 collisions were rear-end collisions out of 54 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 2. Highway 6 & Sycamore Street (Iowa City) 11 collisions were rear-end collisions, 9 collisions were angle oncoming left turn collisions, and 9 collisions were broadside collisions. This accounts for 29 of 42 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 3. Highway 6 & Boyrum Street (Iowa City) 16 collisions were rear-end collisions out of 32 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 4. Oakdale Boulevard & Coral Ridge Avenue (Coralville) 12 collisions were rear-end collisions out of 35 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 5. Burlington Street & Gilbert Street (Iowa City) 19 collisions were rear-end collisions out of 38 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 6. 2nd Street & 1st Avenue (Coralville) 15 collisions were rear-end collisions out of 35 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 7. Riverside Drive & Highway 1 & Highway 6 (Iowa City) 18 collisions were rear-end collisions out of 35 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 8. Burlington Street & Madison Street (Iowa City) 25 collisions were rear-end collisions out of 30 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 9. Kansas Avenue & Penn Street (North Liberty) 16 collisions were rear-end collisions out of 25 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 10. Riverside Drive & Benton Street (Iowa City) 9 collisions were rear-end collisions out of 27 total collisions. A majority of collisions occurred during the day in clear and dry conditions. Analysis of 10 Highest Ranking Intersections 12 1. 2nd Street between 1st Avenue and Hawkins Drive/Rocky Shore Drive (Coralville) 50 collisions were rear-end collisions out of 71 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 2. 2nd Street between 25th Avenue and 23rd Avenue (Coralville) 20 collisions were rear-end collisions and 19 collisions were broadside collisions. This accounts for 49 of 52 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 3. 2nd Street between 4th Avenue and 1st Avenue (Coralville) 26 collisions were rear-end collisions out of 40 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 4. Highway 6 between Valley Avenue and North Riverside Drive (Iowa City) 23 collisions were rear-end collisions out of 37 total collisions. A majority of collisions occurred during the day in clear and dry conditions. 5. 2nd Street between 22nd Avenue/Camp Cardinal Boulevard and 20th Avenue (Coralville) 26 collisions were rear-end collisions out of 31 total collisions. A majority of collisions occurred during the day in clear and dry conditions. Analysis of 5 Highest Ranking Mid-block Locations "" " " " 8 9 7 6 5 4 3 2 1 10 3 2 5 41 Intersections (Ranked) "Mid-B lock Locations (Ranked) 0 1 Miles ± Highest Collision Locations forthe Iowa City Urbanized Area2017-2019*Data Source: Io wa Depa rtment of Transportation Coralville Iowa City Tiffin North Liberty University Heights 2ND ST £¤218 MELROSE AVE N DODGE STDUBUQUE STREET1ST AVECORAL RIDGE AVE/ RANSHAW WAYPARK RD UV1 GI LBERT STPENN ST IRELAND AVEPARK RDFOREVERGREEN RD E BURLINGTON ST S 1ST AVE£¤6 KIRKWOOD AVEW BENTON ST MORMON TREK BLVD§¨¦80 §¨¦380 £¤6 UV1 13 14 Please refer to the Major Cause Summary on page 19 for a comprehensive outline of collisions by jurisdiction. Coralville ID Intersection Location Intersection Rank 4 Oakdale Boulevard & Coral Ridge Avenue 1 6 2nd Street & 1st Avenue 2 13 2nd Street & Camp Cardinal Boulevard 3 17 Coral Ridge Avenue & I-80 Westbound Ramps 4 19 Coral Ridge Avenue & I-80 Eastbound Ramps 5 Iowa City ID Intersection Location Intersection Rank 1 Highway 6 & Gilbert Street 1 2 Highway 6 & Sycamore Street 2 3 Highway 6 & Boyrum Street 3 5 Burlington Street & Gilbert Street 4 7 Riverside Drive & Highway 1 5 *For more information about Highway 1 and Highway 6 collisions, see the 2021 Hwy 1/Hwy 6 corridor study North Liberty ID Intersection Location Intersection Rank 9 Kansas Avenue & Penn Street 1 20 Forevergreen Road & Coral Ridge Avenue 2 23 I-380 Southbound Ramps & Penn Street 3 36 I-380 Northbound Ramps & Penn Street 4 42 Sara Court & Jordan Street 5 Tiffin ID Intersection Location Intersection Rank 93 Croell Avenue & Highway 6 1 94 Village Drive & Ireland Avenue 1 182 Stephans Street & Highway 6 3 212 Highway 6 & North Park Road 4 213 Highway 6 & Roberts Ferry Road 4 University Heights* ID Intersection Location Intersection Rank 199 Koser Avenue & Melrose Avenue 1 *Only one location in the corporate limits of the City of University Heights had three or more collisions between 2017-2019. ID signifies overall intersection rank within the urbanized area Intersection Rank signifies intersection rank within that jurisdiction Highest Ranking Intersection Locations by Jurisdiction 5 4 3 2 1 Inters ections (Ra nk ed)0 1 Miles Highest Collision Locations forCoralville 2017-2019*Data Source: Io wa Depa rtment of Transportation Coralville Iowa City 2ND ST £¤218 1ST AVECORAL RIDGE AVE§¨¦80 §¨¦380 £¤6 ± OAKDALE BLVD 1 2 T H A V E CORAL RIDGE AVE & OAKDALE BLVD CORAL RIDGE AVE & I-80 WB RAMPS CORAL RIDGE AVE & I-80 EB RAMPS 2ND ST & CAMP CARDINAL BLVD 2ND ST & 1ST AVE HOLIDAY RD CAMP CARDINALBLVD15 1 5 4 3 2 1 Intersections (Ra nked)0 1Miles ± Highest Collision Locations forIowa City & University Heights2017-2019*Data Source: Io wa Depa rtment of Transportation Iowa City University Heights ¬«1 GILBERT STE BURLINGTON ST W BENTON ST £¤6RIVERSIDE DRSYCAMORE STKIRKWOOD AVE MELROSE AVE Highway 6 & Gilbert Street Highway 6 & Sycamore Street Highway 6 & Boyrum Street Burlington Street & Gilbert Street Riverside Drive & Highway 1/Highway 6 Koser Avenue & Melrose Avenue DUBUQUE STBOYRUM ST16 2 5 3 4 1 Intersect ions (Ranked) 0 1 Miles ± Highest Collision Locationsfor North Liberty2017-2019 *Data Source: Io wa Depa rtment of Transportation North Liberty RANSHAW WAYPENN ST FOREVERGREEN RD N FRONT ST§¨¦380 Coralville D U B U Q U E ST JONES BOULEVARDKansas Avenue & Penn Street Forevergreen Road & Coral Ridge Avenue I-380 Northbound Ramps & Penn Street I-380 Southbound Ramps & Penn Street Sara Court & Jordan Street 17 1 4134 Intersections (Ranked)0 1 Miles ± Highest Collision Locations forTiffin 2017-2019 *Data Source: Io wa Depa rtment of Transportation Coralville Tiffin £¤218IRELAND AVEPARK RD§¨¦80 §¨¦380 £¤6 Croell Avenue & Highway 6 Village Drive & Ireland Avenue Stephans Street & Highway 6 Roberts Ferry Road/IrelandAvenue & Highway 6 North Park Road & Highway 6 CROELL AVEVILLAGE DR 18 19 The following table has been included to show the total number of collisions, per person, in the Iowa City urbanized area as compared to other selected urbanized areas in Iowa. The Ames urbanized area had the fewest crashes, 52.6 per 1,000 persons. The Dubuque and Iowa City urbanized areas had the highest rates, with 78.6 and 55.7 collisions per 1,000 persons respectively. Location 2019 Population 2017-2019 Collisions Collisions per 1,000 Persons Dubuque Urbanized Area 67,916 5,340 78.6 Iowa City Urbanized Area 120,928 6,738 55.7 Cedar Rapids Urbanized Area 188,618 10,042 53.2 Waterloo Urbanized Area 115,266 6,121 53.1 Ames Urbanized Area 65,864 3,467 52.6 Source: 2019 American Community Survey 1-Year Estimates, 2019 (population) and Iowa DOT Crash Mapping Analysis Tool Per Capita Collision Comparisons 20 In addition to analyzing and ranking specific intersections and mid-block locations of concern, all reported collisions in each community were analyzed to identify the most common causes of collisions. Communities may be able to use this information to focus on correcting major causes of collisions overall. The City of Coralville (1,639 total) β€’ Followed too close (337) β€’ Driving too fast for conditions (148) β€’ Lost control (145) The City of Iowa City (4,270 total) β€’ Followed too close (870) β€’ Other* (340) β€’ Failure to Yield Right of Way from stop sign (238) The City of North Liberty (443 total) β€’ Followed too close (81) β€’ Driving too fast for conditions (44) β€’ Driver Distraction: other interior distraction (28) The City of Tiffin (167 total) β€’ Animal (23) β€’ Other (18) β€’ Failure to Yield Right of Way from stop sign (18) The City of University Heights (12 total) β€’ Followed too close (4) β€’ Driving too fast for conditions (2) β€’ Failure to Yield Right of Way from stop sign (1) *Other: collisions that do not fit into a category The following pages summarize all the collisions in the metro area from 2017-2019 by major causes. These pages serve as a summary analysis of weather conditions, surface conditions, and severity of all reported collisions in each community, not just those collisions at intersection and mid-block locations. Top Three Major Causes of Collisions by Jurisdiction (2017-2019) Major Cause Summary by Urbanized Area and Jurisdiction 21 THIS PAGE INTENTIONALLY LEFT BLANK 22 Urbanized Area Major Cause Summary 2017-2019 23 Major Cause Summary: Coralville 2017-2019 24 Major Cause Summary: Iowa City 2017-2019 25 Major Cause: North Liberty 2017-2019 26 Major Cause Summary: Tiffin 2017-2019 27 Major Cause Summary: University Heights 2017-2019 28 After identifying the highest ranked collision locations in the metro area, the next step is to identify potential countermeasures. Countermeasures can be defined as a device, program, policy, or capital investment intended to improve safety and reduce the number of collisions. To follow are best practices available to assist in identifying countermeasures depending on the collision pattern and probable cause. Staff can use these best practices to help identify any countermeasure that could be implemented to reduce the number, rate and severity of collisions. Collision Probable General Pattern Cause Countermeasure Right angle collisions at unsignalized intersections Restricted sight distance Remove sight obstructions Restrict parking near corners Install/improve street lighting Reduce speed approaches* Install signals [see MUTCD] Install stop signs [see MUTCD] Install warning signs [see MUTCD] Install yield signs [see MUTCD] Channelize intersections Large total intersection volume Install signals [see MUTCD] Reroute through traffic High approach speed Reduce speed limit on approaches* Install rumble strips Roadway design inadequate Widen lanes Change from angle to parallel parking Prohibit parking Reroute through traffic Rear end collisions at unsignalized intersections Pedestrian crossing Install/improve signing or marking of pedestrian crosswalk Relocate crosswalk Driver not aware of intersection Install/improve warning signs Slippery surface Overlay pavement Provide adequate drainage Groove pavement Reduce speed limit on approaches* Provide "SLIPPERY WHEN WET" signs Large number of turning vehicles Create Left- or right-turn lanes Prohibit turns Increase curb radii *Spot speed study should be conducted to justify speed limit reduction Potential Countermeasures 29 Collision Probable General Pattern Cause Countermeasure Right angle collisions at signalized intersections Poor visibility of signals Install/improve advance warning devices Install overhead signals Install 12" signal lenses [see MUTCD] Install visors Install backplates Improve location of signal heads Add additional signal heads Reduce speed limits on approaches* Inadequate signal timing Adjust amber phase Provide all-red clearance phase Add multi-dial controller Install signal actuation Re-time signals Provide progression through a set of signalized intersections Left-turn collisions at intersections Large volume of left turns Provide left turn signal phase Prohibit left turns Reroute left turn traffic Channelize intersections Install stop signs [see MUTCD] Create one-way streets Restricted sight distance Remove obstacles Install warning signs Reduce speed limit on approaches* Fixed-object collisions Object near traveled way Remove obstacles near roadway Install barrier curbing Install breakaway feature to light poles, sign posts, etc. Project objects with guardrails Pedestrian crossings Install/improve signing or markings of pedestrian crosswalks Provide pedestrian "WALK" phase Slipper surface Overlay pavement Provide adequate drainage Groove pavement Reduce speed limit on approaches* Provide "SLIPPERY WHEN WET" signs Unwarranted signals Remove signals [see MUTCD] Large turning volumes Create left- or right-turn lanes Prohibit turns Increase curb radii Night collisions Poor visibility Install/improve street lighting Install/improve delineation markings Install/improve warning signs Wet pavement collisions Slippery pavement Overlay with skid-resistant surface Provide adequate drainage Groove existing pavement Reduce speed limit* Provide "SLIPPERY WHEN WET" signs *Spot speed study should be conducted to justify speed limit reduction 30 Collision Probable General Pattern Cause Countermeasure Rear end collisions at signalized intersections Poor visibility of signals Install / improve advance warning devices Install overhead signals Install 12" signal lenses [see MUTCD] Install visors Install backplates Relocate signals Add additional signal heads Remove obstacles Reduce speed limits on approaches* Inadequate signal timing Adjust amber phase Provide progression through a set of signalized intersections Fixed object collisions and/or vehicles running off roadway Slippery surface Overlay pavement Provide adequate drainage Groove pavement Reduce speed limit on approaches* Provide "SLIPPERY WHEN WET" signs Roadway design inadequate for Widen lanes traffic conditions Relocate islands Close curb lane Poor delineation Improve / install pavement markings Install roadside delineators Install advance warning devices Sideswipe collisions between vehicles traveling opposite directions or head- on collisions Roadway design inadequate for Improve / install pavement markings traffic conditions Channelize intersections Create one-way streets Remove constrictions such as parked vehicles Install median divider Widen lanes Collisions between vehicles traveling in same direction such as sideswipe, turning, or lane changing Roadway design inadequate for Widen lanes traffic conditions Channelize intersections Provide turning bays Install/improve parking lane lines Remove parking Collisions with parked cars or cars being parked Large parking turnover Prohibit parking Change from angle to parallel parking Reroute through traffic Create one-way streets Create off-street parking Reduce speed limit* *Spot speed study should be conducted to justify speed limit reduction 31 Appendix Complete Intersection and Mid-Block Ranking Tables 32 THIS PAGE INTENTIONALLY LEFT BLANK 33 Intersection Rankings 34 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 1 Iowa City HIGHWAY 6 GILBERT STREET 54 15 15 4 0.99 12.25 1 2 Iowa City HIGHWAY 6 SYCAMORE STREET 42 15 12 6 1.45 11.25 2 3 Iowa City HIGHWAY 6 BOYRUM STREET 32 15 10 7 1.67 10.5 3 4 Coralville OAKDALE BOULEVARD CORAL RIDGE AVENUE 31 15 9 8 2.05 10.25 4 5 Iowa City BURLINGTON STREET GILBERT STREET 38 15 10 5 1.24 10 5 6 Coralville 2ND STREET 1ST AVENUE 35 15 10 3 0.74 9.5 6 7 Iowa City RIVERSIDE DRIVE HIGHWAY 1 35 15 10 2 0.48 9.25 7 8 Iowa City BURLINGTON STREET MADISON STREET 30 15 8 5 1.16 9 8 9 North Liberty KANSAS AVENUE PENN STREET 25 12 9 3 0.81 8.25 9 10 Iowa City RIVERSIDE DRIVE BENTON STREET 27 14 7 4 1.00 8 10 11 Iowa City 1ST AVENUE HIGHWAY 6 24 12 8 3 0.80 7.75 11 12 Iowa City MORMON TREK BOULEVARD MELROSE AVENUE 29 14 7 3 0.72 7.75 11 13 Coralville 2ND STREET CAMP CARDINAL BOULEVARD 26 13 8 2 0.54 7.75 11 14 Iowa City GRAND AVENUE SOUTH RIVERSIDE DRIVE 25 12 7 2 0.45 7 14 15 Iowa City MORMON TREK BOULEVARD HIGHWAY 1 24 12 7 2 0.54 7 14 16 Iowa City BENTON STREET MORMON TREK BOULEVARD 21 10 6 5 1.34 6.75 16 35 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 17 Coralville WB I-80 CORAL RIDGE AVENUE 24 12 7 1 0.30 6.75 16 18 Iowa City KEOKUK STREET HIGHWAY 6 22 11 6 3 0.71 6.5 18 19 Coralville EB I-80 CORAL RIDGE AVENUE 21 10 7 2 0.50 6.5 18 20 North Liberty FOREVERGREEN ROAD CORAL RIDGE AVENUE 20 10 6 3 0.84 6.25 20 21 Iowa City SCOTT BOULEVARD NORTH DODGE STREET 21 10 6 2 0.62 6 21 22 Iowa City GILBERT STREET KIRKWOOD AVENUE 18 9 6 3 0.71 6 21 23 North Liberty SB I-380 PENN STREET 18 9 5 5 1.37 6 21 24 Iowa City IOWA AVENUE LUCAS STREET 8 4 2 15 4.99 5.75 24 25 Iowa City DODGE STREET WASHINGTON STREET 14 7 4 8 2.06 5.75 24 26 Iowa City IOWA AVENUE VAN BUREN STREET 8 4 3 13 3.31 5.75 24 27 Iowa City GILBERT STREET BENTON STREET 15 8 4 7 1.69 5.75 24 28 Iowa City DUBUQUE STREET EB I-80 15 8 5 5 1.32 5.75 24 29 Coralville 2ND STREET JONES BOULEVARD 15 8 6 3 0.81 5.75 24 30 Iowa City WAYNE AVENUE WILLIAMS STREET 6 3 2 15 5.55 5.5 30 31 Iowa City DODGE STREET BURLINGTON STREET 17 8 5 4 0.98 5.5 30 32 Iowa City SUNSET STREET HIGHWAY 1 19 10 5 2 0.48 5.5 30 36 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 33 Iowa City MYRTLE AVENUE RIVERSIDE DRIVE 17 8 5 3 0.68 5.25 33 34 Coralville 9TH STREET 1ST AVENUE 18 9 5 2 0.62 5.25 33 35 Iowa City MORMON TREK BOULEVARD ROHRET ROAD 16 8 4 5 1.13 5.25 33 36 North Liberty PENN STREET NB I-380 17 8 5 3 0.81 5.25 33 37 Iowa City TAYLOR DRIVE HIGHWAY 6 11 6 5 4 0.91 5 37 38 Iowa City BOWERY STREET DODGE STREET 14 7 4 5 1.22 5 37 39 Iowa City HIGHWAY 6 HAWKINS DRIVE 17 8 5 2 0.49 5 37 40 Iowa City ORCHARD STREET HIGHWAY 1 17 8 4 3 0.66 4.75 40 41 Iowa City HIGHWAY 1 SB 218 16 8 4 3 0.64 4.75 40 42 North Liberty SARA COURT JORDAN STREET 5 2 1 15 4.97 4.75 40 43 Coralville HOLIDAY ROAD CORAL RIDGE AVENUE 16 8 4 3 0.86 4.75 40 44 Iowa City DODGE STREET WB I-80 16 8 4 2 0.57 4.5 44 45 Iowa City FAIRMEADOWS BOULEVARD HIGHWAY 6 14 7 4 3 0.78 4.5 44 46 Iowa City GOVERNOR STREET BURLINGTON STREET 13 6 4 4 0.88 4.5 44 47 Iowa City DODGE STREET IOWA AVENUE 10 5 3 7 1.82 4.5 44 48 Iowa City GILBERT STREET KIRKWOOD AVENUE 10 5 3 7 1.83 4.5 44 49 Iowa City BURLINGTON STREET LINN STREET 13 6 4 4 0.89 4.5 44 37 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 50 Iowa City DUBUQUE STREET BURLINGTON STREET 14 7 4 3 0.73 4.5 44 51 Iowa City IOWA AVENUE RIVERSIDE DRIVE 15 8 4 2 0.41 4.5 44 52 Iowa City BARTELT ROAD MORMON TREK BOULEVARD 12 6 3 6 1.57 4.5 44 53 Iowa City MORMON TREK BOULEVARD CAMERON WAY 12 6 3 6 1.54 4.5 44 54 North Liberty PENN STREET RANSHAW WAY NORTH 15 8 4 2 0.55 4.5 44 55 Iowa City CORAL RIDGE AVENUE 2ND STREET 17 8 4 2 0.54 4.5 44 56 Iowa City BRADFORD DRIVE 1ST AVENUE 13 6 4 3 0.84 4.25 56 57 Iowa City FRIENDSHIP STREET 1ST AVENUE 12 6 3 5 1.17 4.25 56 58 Iowa City GOVERNOR STREET IOWA AVENUE 10 5 2 8 2.11 4.25 56 59 Iowa City COLLEGE STREET LUCAS STREET 4 2 2 11 2.84 4.25 56 60 Iowa City JEFFERSON STREET GILBERT STREET 13 6 4 3 0.76 4.25 56 61 Iowa City STEVENS DRIVE GILBERT STREET 10 5 4 4 0.89 4.25 56 62 Coralville 2ND STREET 4TH AVENUE 12 6 4 3 0.76 4.25 56 63 Coralville 2ND STREET 25TH AVENUE 14 7 4 2 0.49 4.25 56 64 Iowa City MUSCATINE AVENUE 1ST AVENUE 13 6 4 2 0.47 4 64 65 Iowa City GILBERT STREET MCCOLLISTER BOULEVARD 12 6 3 4 0.88 4 64 38 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 66 Iowa City MADISON STREET FRONT STREET 5 2 3 8 2.06 4 64 67 Iowa City JOHNSON STREET IOWA AVENUE 6 3 2 8 1.93 3.75 67 68 Iowa City DUBUQUE STREET CHURCH STREET 10 5 3 4 1.07 3.75 67 69 Iowa City CLINTON STREET BURLINGTON STREET 11 6 3 3 0.66 3.75 67 70 Iowa City MELROSE AVENUE WEST WINDS DRIVE 13 6 3 3 0.63 3.75 67 71 Coralville 2ND STREET 12TH AVENUE 11 6 3 3 0.63 3.75 67 72 Iowa City AMERICAN LEGION ROAD TAFT AVENUE 5 2 2 8 2.10 3.5 72 73 Iowa City 1ST AVENUE COURT STREET 13 6 3 2 0.56 3.5 72 74 Iowa City 1ST AVENUE LOWER MUSCATINE ROAD 12 6 3 2 0.62 3.5 72 75 Iowa City DODGE STREET JEFFERSON STREET 9 4 3 4 0.92 3.5 72 76 Iowa City RUPPERT ROAD RIVERSIDE DRIVE 8 4 4 2 0.59 3.5 72 77 Iowa City EB I-80 DODGE STREET 13 6 3 1 0.35 3.25 77 78 Iowa City HIGHWAY 6 BROADWAY STREET 9 4 3 3 0.70 3.25 77 79 Iowa City MARKET STREET GOVERNOR STREET 7 4 3 3 0.64 3.25 77 80 Iowa City JOHNSON STREET WASHINGTON STREET 6 3 2 6 1.40 3.25 77 81 Iowa City FOSTER ROAD DUBUQUE STREET 13 6 3 1 0.21 3.25 77 82 Iowa City HAWKINS DRIVE MELROSE AVENUE 8 4 2 5 1.27 3.25 77 39 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 83 Coralville 5TH STREET 18TH AVENUE 6 3 2 6 1.47 3.25 77 84 Coralville CROSSPARK ROAD OAKDALE BOULEVARD 6 3 4 2 0.51 3.25 77 85 Iowa City HIGHWAY 6 INDUSTRIAL PARK ROAD 9 4 3 2 0.52 3 85 86 Iowa City LOWER MUSCATINE ROAD MALL DRIVE 6 3 2 5 1.22 3 85 87 Iowa City GOVERNOR STREET JEFFERSON STREET 7 4 2 4 0.97 3 85 88 Iowa City BURLINGTON STREET JOHNSON STREET 8 4 2 4 0.89 3 85 89 Iowa City BURLINGTON STREET VAN BUREN STREET 8 4 2 4 0.99 3 85 90 Iowa City MARKET STREET GILBERT STREET 8 4 3 2 0.60 3 85 91 Iowa City GILBERT STREET COLLEGE STREET 9 4 3 2 0.50 3 85 92 North Liberty JONES BOULEVARD 240TH STREET 5 2 1 8 1.91 3 85 93 Tiffin CROELL AVENUE HIGHWAY 6 6 3 2 5 1.30 3 85 94 Tiffin VILLAGE DRIVE IRELAND AVENUE 6 3 2 5 1.37 3 85 95 Iowa City HIGHWAY 6 HEINZ ROAD 9 4 2 3 0.70 2.75 95 96 Iowa City 1ST AVENUE MALL DRIVE 7 4 2 3 0.85 2.75 95 97 Iowa City SUMMIT STREET BURLINGTON STREET 8 4 2 3 0.63 2.75 95 98 Iowa City DODGE STREET WALNUT STREET 4 2 2 5 1.28 2.75 95 99 Iowa City PARK ROAD DUBUQUE STREET 8 4 3 1 0.34 2.75 95 40 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 100 Iowa City BLOOMINGTON STREET DUBUQUE STREET 8 4 2 3 0.81 2.75 95 101 Iowa City CAPITOL STREET BURLINGTON STREET 9 4 2 3 0.79 2.75 95 102 Coralville 2ND AVENUE 2ND STREET 10 5 2 2 0.61 2.75 95 103 Coralville 2ND STREET 6TH AVENUE 10 5 2 2 0.62 2.75 95 104 Iowa City GALWAY DRIVE MELROSE AVENUE 6 3 3 2 0.38 2.75 95 105 Coralville 22ND AVENUE 10TH STREET 6 3 2 4 1.00 2.75 95 106 North Liberty WESTWOOD DRIVE RANSHAW WAY SOUTH 7 4 2 3 0.67 2.75 95 107 Iowa City SCOTT BOULEVARD MUSCATINE AVENUE 7 4 2 2 0.56 2.5 107 108 Iowa City SCOTT BOULEVARD LIBERTY DRIVE 4 2 1 6 1.42 2.5 107 109 Iowa City SCOTT BOULEVARD HIGHWAY 6 7 4 2 2 0.52 2.5 107 110 Iowa City WAYNE AVENUE 1ST AVENUE 6 3 2 3 0.68 2.5 107 111 Iowa City PRAIRIE DU CHIEN ROAD SAINT CLEMENTS STREET 3 2 1 6 1.39 2.5 107 112 Iowa City LUCAS STREET CHURCH STREET 3 2 1 6 1.38 2.5 107 113 Iowa City KEOKUK STREET SOUTHGATE AVENUE 6 3 2 3 0.85 2.5 107 114 Iowa City PRENTISS STREET GILBERT STREET 6 3 2 3 0.67 2.5 107 115 Iowa City BROWN STREET DUBUQUE STREET 7 4 2 2 0.43 2.5 107 116 Iowa City MARKET STREET DUBUQUE STREET 8 4 2 2 0.42 2.5 107 41 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 117 Iowa City CAPITOL STREET HARRISON STREET 3 2 2 4 1.01 2.5 107 118 Iowa City GREENWOOD DRIVE BENTON STREET 7 4 2 2 0.55 2.5 107 119 Coralville 7TH STREET 1ST AVENUE 7 4 2 2 0.56 2.5 107 120 Coralville 2ND STREET 20TH AVENUE 7 4 2 2 0.46 2.5 107 121 Coralville 10TH STREET 23RD AVENUE 3 2 1 6 1.42 2.5 107 122 Coralville HEARTLAND DRIVE COMMERCE DRIVE 9 4 2 2 0.42 2.5 107 123 Iowa City LUCAS STREET BURLINGTON STREET 6 3 2 2 0.51 2.25 123 124 Iowa City GILBERT STREET DAVENPORT STREET 3 2 1 5 1.30 2.25 123 125 Iowa City COURT STREET GILBERT STREET 6 3 2 2 0.59 2.25 123 126 Iowa City CLINTON STREET PRENTISS STREET 4 2 1 5 1.26 2.25 123 127 Iowa City CAPITOL STREET BENTON STREET 6 3 2 2 0.39 2.25 123 128 Iowa City STURGIS CORNER DRIVE RIVERSIDE DRIVE 9 4 2 1 0.37 2.25 123 129 Iowa City HUDSON AVENUE HIGHWAY 1 7 4 2 1 0.27 2.25 123 130 Iowa City MILLER AVENUE HIGHWAY 1 7 4 2 1 0.19 2.25 123 131 Iowa City HIGHWAY 1 RUPPERT ROAD 9 4 2 1 0.35 2.25 123 132 Iowa City BENTON STREET SUNSET STREET 6 3 2 2 0.41 2.25 123 133 Coralville 1ST AVENUE EB I-80 8 4 2 1 0.37 2.25 123 134 Coralville 5TH STREET 1ST AVENUE 8 4 2 1 0.28 2.25 123 42 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 135 Iowa City HIGHWAY 1 NB 218 9 4 2 1 0.25 2.25 123 136 Iowa City NAPLES AVENUE HIGHWAY 1 6 3 2 2 0.48 2.25 123 137 Coralville 9TH STREET 23RD AVENUE 6 3 2 2 0.46 2.25 123 138 North Liberty RANSHAW WAY ZELLER STREET 7 4 2 1 0.31 2.25 123 139 North Liberty FAIRVIEW LANE RANSHAW WAY SOUTH 6 3 2 2 0.50 2.25 123 140 Iowa City COURT STREET SCOTT BOULEVARD 5 2 2 2 0.40 2 140 141 Iowa City LOWER WEST BRANCH ROAD SCOTT BOULEVARD 5 2 2 2 0.51 2 140 142 Iowa City SCOTT BOULEVARD ROCHESTER AVENUE 6 3 2 1 0.34 2 140 143 Iowa City MUSCATINE AVENUE SOUTH LAWN DRIVE 4 2 1 4 0.97 2 140 144 Iowa City DODGE STREET NORTH SUMMIT STREET 6 3 2 1 0.35 2 140 145 Iowa City BOWERY STREET LUCAS STREET 3 2 1 4 0.88 2 140 146 Iowa City DODGE STREET BLOOMINGTON STREET 5 2 1 4 0.97 2 140 147 Iowa City MARKET STREET DODGE STREET 5 2 2 2 0.45 2 140 148 Iowa City BOWERY STREET JOHNSON STREET 4 2 1 4 0.92 2 140 149 Iowa City CHURCH STREET GILBERT STREET 4 2 1 4 1.09 2 140 150 Iowa City IOWA AVENUE GILBERT STREET 6 3 2 1 0.31 2 140 43 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 151 Iowa City WATERFRONT DRIVE SOUTHGATE AVENUE 5 2 1 4 0.88 2 140 152 Iowa City MARKET STREET LINN STREET 5 2 1 4 0.90 2 140 153 Iowa City GILBERT STREET 1ST STREET 4 2 2 2 0.44 2 140 154 Iowa City DAVENPORT STREET DUBUQUE STREET 5 2 2 2 0.58 2 140 155 Iowa City DUBUQUE STREET PRENTISS STREET 3 2 1 4 0.93 2 140 156 Iowa City MADISON STREET JEFFERSON STREET 4 2 2 2 0.49 2 140 157 Iowa City STURGIS CORNER DRIVE HIGHWAY 6 6 3 2 1 0.33 2 140 158 Iowa City EVASHEVSKI DRIVE MELROSE AVENUE 6 3 2 1 0.28 2 140 159 Iowa City WESTGATE STREET BENTON STREET 4 2 1 4 1.04 2 140 160 Iowa City KENNEDY PARKWAY MELROSE AVENUE 4 2 2 2 0.45 2 140 161 Coralville 5TH STREET 20TH AVENUE 5 2 2 2 0.54 2 140 162 Coralville WHEATON ROAD CORAL RIDGE AVENUE 4 2 2 2 0.48 2 140 163 Coralville CORAL COURT OAKDALE BOULEVARD 3 2 1 4 1.02 2 140 164 Coralville HEARTLAND DRIVE HEARTLAND PLACE 4 2 2 2 0.60 2 140 165 North Liberty ZELLER STREET JONES BOULEVARD 3 2 2 2 0.50 2 140 166 Iowa City SCOTT BOULEVARD WINTERGREEN DRIVE 3 2 1 3 0.67 1.75 166 44 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 167 Iowa City NORTHGATE DRIVE NORTH DODGE STREET 4 2 2 1 0.29 1.75 166 168 Iowa City 2ND AVENUE COURT STREET 3 2 1 3 0.71 1.75 166 169 Iowa City EVANS STREET JEFFERSON STREET 4 2 1 3 0.65 1.75 166 170 Iowa City SUMMIT STREET KIRKWOOD AVENUE 5 2 1 3 0.65 1.75 166 171 Iowa City JEFFERSON STREET LUCAS STREET 3 2 1 3 0.87 1.75 166 172 Iowa City JOHNSON STREET JEFFERSON STREET 4 2 1 3 0.70 1.75 166 173 Iowa City JOHNSON STREET MARKET STREET 3 2 1 3 0.66 1.75 166 174 Iowa City CAPITOL STREET PRENTISS STREET 3 2 1 3 0.63 1.75 166 175 Iowa City MELROSE COURT MELROSE AVENUE 4 2 1 3 0.63 1.75 166 176 Coralville 1ST AVENUE WB I-80 4 2 2 1 0.24 1.75 166 177 Iowa City MORMON TREK BOULEVARD WALDEN ROAD 4 2 1 3 0.64 1.75 166 178 Coralville 7TH STREET 12TH AVENUE 4 2 1 3 0.84 1.75 166 179 Iowa City DUBLIN DRIVE MELROSE AVENUE 4 2 2 1 0.32 1.75 166 180 North Liberty COMMUNITY DRIVE WEST PENN STREET 4 2 2 1 0.32 1.75 166 181 Coralville COMMERCIAL PARK HEARTLAND DRIVE 3 2 1 3 0.87 1.75 166 182 Tiffin STEPHANS STREET HIGHWAY 6 4 2 2 1 0.26 1.75 166 183 Iowa City WASHINGTON STREET 1ST AVENUE 4 2 1 2 0.54 1.5 183 45 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 184 Iowa City SYCAMORE STREET LOWER MUSCATINE ROAD 5 2 1 2 0.51 1.5 183 185 Iowa City COURT STREET 7TH AVENUE 4 2 1 2 0.42 1.5 183 186 Iowa City SUMMIT STREET BOWERY STREET 3 2 1 2 0.62 1.5 183 187 Iowa City COURT STREET SUMMIT STREET 3 2 1 2 0.61 1.5 183 188 Iowa City GOVERNOR STREET WASHINGTON STREET 3 2 1 2 0.54 1.5 183 189 Iowa City GOVERNOR STREET COLLEGE STREET 3 2 1 2 0.61 1.5 183 190 Iowa City COLLEGE STREET DODGE STREET 3 2 1 2 0.61 1.5 183 191 Iowa City KIRKWOOD AVENUE DODGE STREET 3 2 1 2 0.38 1.5 183 192 Iowa City JEFFERSON STREET VAN BUREN STREET 4 2 1 2 0.58 1.5 183 193 Iowa City MARKET STREET CLINTON STREET 5 2 1 2 0.46 1.5 183 194 Iowa City CLINTON STREET BENTON STREET 4 2 1 2 0.38 1.5 183 195 Iowa City RIVER STREET RIVERSIDE DRIVE 3 2 1 2 0.42 1.5 183 196 Iowa City BENTON STREET ORCHARD STREET 5 2 1 2 0.39 1.5 183 197 Iowa City STEPHEN ATKINS DRIVE DUBUQUE STREET 4 2 1 2 0.39 1.5 183 198 Iowa City EVASHEVSKI DRIVE HAWKINS DRIVE 4 2 1 2 0.43 1.5 183 46 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 199 University Heights KOSER AVENUE MELROSE AVENUE 4 2 1 2 0.60 1.5 183 200 Iowa City BENTON STREET OAKNOLL DRIVE 3 2 1 2 0.49 1.5 183 201 Iowa City MELROSE AVENUE WESTGATE STREET 5 2 1 2 0.55 1.5 183 202 Coralville 4TH AVENUE 5TH STREET 3 2 1 2 0.39 1.5 183 203 Iowa City MORMON TREK BOULEVARD WEST WINDS DRIVE 3 2 1 2 0.38 1.5 183 204 Iowa City MORMON TREK BOULEVARD ABBEY LANE 3 2 1 2 0.48 1.5 183 205 North Liberty LIBERTY ROAD DUBUQUE STREET 5 2 1 2 0.62 1.5 183 206 Coralville 5TH STREET 10TH AVENUE 5 2 1 2 0.50 1.5 183 207 Coralville 12TH AVENUE 10TH STREET 4 2 1 2 0.52 1.5 183 208 Coralville 22ND AVENUE 9TH STREET 3 2 1 2 0.50 1.5 183 209 Coralville GLEN OAKS DRIVE OAKDALE BOULEVARD 3 2 1 2 0.56 1.5 183 210 Iowa City SB 218 MELROSE AVENUE 5 2 1 2 0.40 1.5 183 211 North Liberty COMMERCIAL DRIVE RANSHAW WAY NORTH 3 2 1 2 0.39 1.5 183 212 Tiffin HIGHWAY 6 PARK ROAD 4 2 1 2 0.47 1.5 183 213 Tiffin HIGHWAY 6 ROBERTS FERRY ROAD 3 2 1 2 0.39 1.5 183 214 Iowa City SCOTT BOULEVARD SCOTT PARK DRIVE 3 2 1 1 0.30 1.25 214 215 Iowa City MUSCATINE AVENUE DOVER STREET 3 2 1 1 0.28 1.25 214 47 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 216 Iowa City MUSCATINE AVENUE WADE STREET 3 2 1 1 0.17 1.25 214 217 Iowa City SCOTT BOULEVARD 1ST AVENUE 5 2 1 1 0.36 1.25 214 218 Iowa City BURLINGTON STREET MUSCATINE AVENUE 3 2 1 1 0.29 1.25 214 219 Iowa City DODGE STREET CHURCH STREET 3 2 1 1 0.30 1.25 214 220 Iowa City WASHINGTON STREET GILBERT STREET 5 2 1 1 0.31 1.25 214 221 Iowa City KIMBALL ROAD DUBUQUE STREET 4 2 1 1 0.18 1.25 214 222 Iowa City RONALDS STREET DUBUQUE STREET 3 2 1 1 0.25 1.25 214 223 Iowa City FAIRCHILD STREET DUBUQUE STREET 4 2 1 1 0.29 1.25 214 224 Iowa City DUBUQUE STREET JEFFERSON STREET 3 2 1 1 0.23 1.25 214 225 Iowa City SOUTHGATE AVENUE GILBERT STREET 3 2 1 1 0.30 1.25 214 226 Iowa City CLINTON STREET WASHINGTON STREET 3 2 1 1 0.25 1.25 214 227 Iowa City IOWA AVENUE MADISON STREET 3 2 1 1 0.23 1.25 214 228 Iowa City OLD HIGHWAY 218 RIVERSIDE DRIVE 3 2 1 1 0.26 1.25 214 229 Iowa City RIVERSIDE DRIVE PARK ROAD 3 2 1 1 0.33 1.25 214 230 Iowa City DUBUQUE STREET WB I-80 3 2 1 1 0.28 1.25 214 231 Iowa City LOT 43 N DRIVE HAWKINS DRIVE 3 2 1 1 0.25 1.25 214 48 ID Jurisdiction Road 1 Road 2 Total Number of Collisions Collision Points Severity Points Crash Rate Points Crash Rate Combined Score Intersection Rank 232 Coralville 1ST AVENUE OAKDALE BOULEVARD 4 2 1 1 0.21 1.25 214 233 Iowa City MORMON TREK BOULEVARD HAWKEYE PARK ROAD 3 2 1 1 0.13 1.25 214 234 Coralville 5TH STREET 12TH AVENUE 3 2 1 1 0.17 1.25 214 235 Coralville HOLIDAY ROAD 12TH AVENUE 4 2 1 1 0.30 1.25 214 236 Iowa City MELROSE AVENUE HAWKEYE PARK ROAD 3 2 1 1 0. 30 1.25 214 237 Iowa City CAMP CARIDNAL BOULEVARD MELROSE AVENUE 5 2 1 1 0.15 1.25 214 238 Iowa City NB 218 MELROSE AVENUE 3 2 1 1 0.21 1.25 214 239 North Liberty FRONT STREET NORTH DUBUQUE ROAD 3 2 1 1 0.32 1.25 214 240 North Liberty DUBUQUE STREET WEST PENN STREET 3 2 1 1 0.19 1.25 214 241 North Liberty STEWART STREET PENN STREET 4 2 1 1 0.25 1.25 214 242 North Liberty CHERRY STREET RANSHAW WAY NORTH 4 2 1 1 0.23 1.25 214 243 Iowa City HIGHWAY 6 NORTH RIVERSIDE DRIVE 5 2 1 0 0.12 1 243 244 Iowa City S GRAND AVENUE GRAND AVENUE 4 2 1 0 0.08 1 243 245 Coralville 6TH STREET 1ST AVENUE 3 2 1 0 0.11 1 243 246 Coralville 2ND STREET 10TH AVENUE 3 2 1 0 0.06 1 243 247 North Liberty JONES BOULEVARD WEST PENN STREET 3 2 1 0 0.12 1 243 49 Mid-Block Rankings 50 ID Jurisdiction Street Name Location of First Node Location of Second Node Total Number of Collisions Collision Points Severity Points Crash Rate Points Combined Score Midblock Rank 1 Coralville 2ND STREET 1ST AVENUE HAWKINS DRIVE/ROCKY SHORE DRIVE 71 15 15 15 15 1 2 Coralville 2ND STREET 25TH AVENUE 23RD AVENUE 52 15 14 15 14.5 2 3 Coralville 2ND STREET 4TH AVENUE 1ST AVENUE 40 15 12 15 13.5 3 4 Iowa City HIGHWAY 6 VALLEY AVENUE N RIVERSIDE DRIVE 37 15 12 11 12.5 4 5 Coralville 2ND STREET 22ND AVENUE/CAMP CARDINAL BOULEVARD 20TH AVENUE 31 15 9 15 12 5 6 Coralville 2ND STREET CORAL RIDGE AVENUE 25TH AVENUE 23 12 7 15 10.25 6 7 Iowa City DUBUQUE STREET RIDGE ROAD KIMBALL AVENUE 25 13 8 12 10.25 6 8 Iowa City HIGHWAY 1 MORMON TREK BOULEVARD SUNSET STREET 27 14 8 10 10 8 9 Iowa City HIGHWAY 6 GILBERT STREET BOYRUM STREET 19 10 6 14 9 9 10 Iowa City RIVERSIDE DRIVE BENTON STREET MYRTLE AVENUE 17 9 5 14 8.25 10 11 Iowa City HIGHWAY 1 SUNSET STREET RUPPERT ROAD 23 12 6 8 8 11 12 Iowa City NEWTON ROAD RIVERSIDE DRIVE WOOLF AVENUE 13 7 5 15 8 11 13 Iowa City CLINTON STREET WASHINGTON STREET BURLINGTON STREET 13 7 5 15 8 11 14 Coralville CORAL RIDGE AVENUE OAKDALE BOULEVARD HOLIDAY ROAD 17 9 5 13 8 11 15 Iowa City IOWA AVENUE RIVERSIDE DRIVE MADISON STREET 11 6 4 15 7.25 15 51 ID Jurisdiction Street Name Location of First Node Location of Second Node Total Number of Collisions Collision Points Severity Points Crash Rate Points Combined Score Midblock Rank 16 Iowa City HIGHWAY 6 NEWTON ROAD VALLEY AVENUE 12 6 4 15 7.25 15 17 Iowa City 1ST AVENUE BRADFORD DRIVE MALL DRIVE 9 5 4 15 7 17 18 Iowa City NORTH DODGE STREET SCOTT BOULEVARD I-80 EB RAMPS 19 10 5 8 7 17 19 Iowa City RIVERSIDE DRIVE BURLINGTON STREET MYRTLE AVENUE 15 8 5 9 6.75 19 20 Iowa City DUBUQUE STREET EB I-80 RAMPS FOSTER ROAD 11 6 3 15 6.75 19 21 Iowa City HAWKINS DRIVE FINKBINE COMMUTER ELLIOTT DRIVE 9 5 3 15 6.5 21 22 Coralville 12TH AVENUE 2ND STREET 5TH STREET 9 5 3 15 6.5 21 23 Iowa City CAPITOL STREET WASHINGTON STREET BURLINGTON STREET 10 5 3 15 6.5 21 24 Iowa City HIGHWAY 1 HUDSON AVENUE ORCHARD STREET 9 5 5 10 6.25 24 25 Iowa City DODGE STREET BROWN STREET GOVERNOR STREET 8 4 3 15 6.25 24 26 Coralville 2ND STREET 20TH AVENUE 12TH AVENUE 15 8 6 4 6 26 27 Iowa City ROHRET ROAD DUCK CREEK DRIVE SHANNON DRIVE 5 3 3 15 6 26 28 Iowa City GILBERT STREET HIGHWAY 6 KIRKWOOD AVENUE 11 6 3 12 6 26 29 North Liberty CORAL RIDGE AVENUE FOREVERGREEN ROAD WHEATON ROAD 8 4 2 15 5.75 29 30 Iowa City RIVERSIDE DRIVE HIGHWAY 1 RUPPERT ROAD 7 4 2 15 5.75 29 31 Coralville BOSTON WAY 10TH STREET 10TH STREET 5 3 2 15 5.5 31 52 ID Jurisdiction Street Name Location of First Node Location of Second Node Total Number of Collisions Collision Points Severity Points Crash Rate Points Combined Score Midblock Rank 32 Iowa City VAN BUREN STREET BURLINGTON STREET BOWERY STREET 5 3 2 15 5.5 31 33 Coralville 1ST AVENUE 2ND STREET 5TH STREET 12 6 3 10 5.5 31 34 Iowa City HUDSON AVENUE BENTON STREET HIGHWAY 1 5 3 2 15 5.5 31 35 Tiffin JAMES AVENUE IRELAND AVENUE 270TH STREET 5 3 2 15 5.5 31 36 Coralville CROSSPARK ROAD UNIVERSITY PARKWAY OAKDALE BOULEVARD 6 3 2 15 5.5 31 37 Iowa City HIGHWAY 6 STURGIS CORNER DRIVE GILBERT STREET 14 7 5 4 5.25 37 38 Iowa City MELROSE AVENUE WESTWINDS DRIVE MORMON TREK BOULEVARD 8 4 2 13 5.25 37 39 Iowa City BARTELT ROAD ROBERTS ROAD MORMON TREK BOULEVARD 4 2 2 15 5.25 37 40 Tiffin HIGHWAY 6 IRELAND AVENUE DEER VIEW AVENUE 8 4 3 11 5.25 37 41 Iowa City RIVERSIDE DRIVE RIVER STREET HIGHWAY 6 5 3 2 13 5 41 42 Coralville 1ST AVENUE 9TH STREET 7TH STREET 12 6 4 6 5 41 43 Coralville CORAL RIDGE AVENUE HOLIDAY ROAD COMMERCE DRIVE 7 4 3 10 5 41 44 Coralville 12TH AVENUE 8TH STREET 7TH STREET 5 3 2 13 5 41 45 Iowa City HEINZ ROAD SCOTT BOULEVARD HIGHWAY 6 4 2 1 15 4.75 45 46 Iowa City MALL DRIVE 1ST AVENUE LOWER MUSCATINE ROAD 3 2 1 15 4.75 45 53 ID Jurisdiction Street Name Location of First Node Location of Second Node Total Number of Collisions Collision Points Severity Points Crash Rate Points Combined Score Midblock Rank 47 Iowa City HIGHWAY 6 HAWKINS DRIVE/ROCKY SHORE DRIVE NEWTON ROAD 6 3 2 12 4.75 45 48 Coralville COMMERCE DRIVE CORAL RIDGE AVENUE COMMERCIAL PARK 6 3 2 12 4.75 45 49 Iowa City VAN BUREN STREET BOWERY STREET DEAD END 3 2 1 15 4.75 45 50 Iowa City JOHNSON STREET BOWERY STREET DEAD END 3 2 1 15 4.75 45 51 Iowa City IOWA AVENUE GOVERNOR STREET EVANS STREET 4 2 1 15 4.75 45 52 Iowa City BARTELT ROAD MORMON TREK BOULEVARD ROBERTS ROAD 3 2 1 15 4.75 45 53 Coralville OAKDALE BOULEVARD JONES BOULEVARD CORAL COURT 3 2 1 15 4.75 45 54 Iowa City GILBERT COURT KIRKWOOD AVENUE HIGHLAND AVENUE 3 2 1 15 4.75 45 55 Iowa City AMBER LANE LAKESIDE DRIVE LAKESIDE DRIVE 3 2 1 15 4.75 45 56 Iowa City EMERALD STREET BENTON STREET MELROSE AVENUE 4 2 1 15 4.75 45 57 Iowa City EAST FOSTER ROAD DUBUQUE STREET PRAIRIE DU CHIEN ROAD 3 2 1 15 4.75 45 58 Iowa City HAWKINS DRIVE EVASHEVSKI DRIVE FOR THE KIDS WAY 4 2 1 15 4.75 45 59 Coralville 1ST AVENUE 6TH STREET 5TH STREET 7 4 3 8 4.5 59 60 Iowa City MELROSE AVENUE CAMP CARDINAL BOULEVARD SB 218 3 2 1 14 4.5 59 61 Iowa City 1ST AVENUE COURT STREET A STREET 5 3 2 11 4.5 59 54 ID Jurisdiction Street Name Location of First Node Location of Second Node Total Number of Collisions Collision Points Severity Points Crash Rate Points Combined Score Midblock Rank 62 Iowa City SOUTH RIVERSIDE DRIVE RUPPERT ROAD HIGHWAY 6 7 4 3 7 4.25 62 63 Iowa City RUPPERT ROAD HIGHWAY 1 OLD HIGHWAY 218 5 3 3 8 4.25 62 64 Coralville CORAL RIDGE AVENUE UNIVERSITY PARKWAY OAKDALE BOULEVARD 8 4 2 9 4.25 62 65 Coralville CORAL RIDGE AVENUE CORAL RIDGE MALL 2ND STREET 8 4 3 7 4.25 62 66 Iowa City MELROSE AVENUE DUBLIN DRIVE HAWKEYE PARK ROAD 3 2 2 11 4.25 62 67 Iowa City MELROSE AVENUE CAMP CARDINAL BOULEVARD KENNEDY PARKWAY 8 4 2 8 4 67 68 Coralville 2ND STREET 10TH AVENUE 6TH AVENUE 11 6 3 4 4 67 69 Iowa City KEOKUK STREET HIGHWAY 6 SOUTHGATE AVENUE 3 2 1 12 4 67 70 Iowa City BENTON STREET GREENWOOD DRIVE MILLER AVENUE 5 3 2 8 3.75 70 71 Coralville 2ND STREET 6TH AVENUE 4TH AVENUE 6 3 2 8 3.75 70 72 Tiffin HIGHWAY 6 PARK ROAD WESTCOR DRIVE 5 3 3 6 3.75 70 73 Iowa City BENTON STREET OAKNOLL DRIVE GREENWOOD DRIVE 5 3 2 8 3.75 70 74 Iowa City MELROSE AVENUE S GRAND AVENUE BYINGTON ROAD 4 2 2 9 3.75 70 75 Iowa City HIGHWAY 1 NB 218 MORMON TREK BOULEVARD 5 3 2 8 3.75 70 76 Iowa City RIVERSIDE DRIVE IOWA AVENUE BURLINGTON STREET 8 4 2 7 3.75 70 55 ID Jurisdiction Street Name Location of First Node Location of Second Node Total Number of Collisions Collision Points Severity Points Crash Rate Points Combined Score Midblock Rank 77 Coralville CORAL COURT OAKDALE BOULEVARD JONES BOULEVARD 4 2 2 8 3.5 77 78 Iowa City MELROSE AVENUE WESTWINDS DRIVE HAWKEYE PARK ROAD 4 2 1 10 3.5 77 79 Iowa City RIVERSIDE DRIVE BENTON STREET STURGIS CORNER DRIVE 5 3 2 7 3.5 77 80 Iowa City PARK ROAD NORTH RIVERSIDE DRIVE DUBUQUE STREET 3 2 1 10 3.5 77 81 Coralville 5TH STREET 18TH AVENUE 12TH AVENUE 4 2 1 10 3.5 77 82 Iowa City RIVERSIDE DRIVE GROVE STREET RIVER STREET 4 2 2 8 3.5 77 83 Coralville CAMP CARDINAL BOULEVARD JAMES STREET CAMP CARDINAL ROAD 6 3 2 7 3.5 77 84 Iowa City BENTON STREET RIVERSIDE DRIVE CAPITOL STREET 5 3 2 6 3.25 84 85 Iowa City 1ST AVENUE MALL DRIVE LOWER MUSCATINE ROAD 5 3 2 6 3.25 84 86 Iowa City HIGHWAY 6 LAKESIDE DRIVE HEINZ ROAD 5 3 3 4 3.25 84 87 Coralville 12TH AVENUE FOREVERGREEN ROAD DEMPSTER DRIVE 3 2 2 7 3.25 84 88 North Liberty RANSHAW WAY SOUTH ASHLEY COURT SARA COURT 5 3 2 6 3.25 84 89 Coralville CORAL RIDGE AVENUE COMMERCE DRIVE CORAL RIDGE MALL 6 3 2 6 3.25 84 90 Coralville HOLIDAY ROAD 1ST AVENUE HOLIDAY RIDGE LANE 3 2 1 8 3 90 56 ID Jurisdiction Street Name Location of First Node Location of Second Node Total Number of Collisions Collision Points Severity Points Crash Rate Points Combined Score Midblock Rank 91 Coralville 2ND STREET JONES BOULEVARD/ WESTCOR DRIVE DEER CREEK ROAD 6 3 2 5 3 90 92 Coralville 1ST STREET 2ND STREET HAWKEYE PARK ROAD 6 3 2 5 3 90 93 Coralville 2ND STREET CORAL RIDGE AVENUE DEER CREEK ROAD 5 3 2 4 2.75 93 94 North Liberty WEST PENN STREET PACHA PARKWAY DUBUQUE STREET 4 2 1 7 2.75 93 95 Iowa City MELROSE AVENUE HAWKINS DRIVE GRAND AVENUE 4 2 1 7 2.75 93 96 Iowa City LOWER MUSCATINE ROAD DEFOREST AVENUE MALL DRIVE 3 2 1 7 2.75 93 97 Iowa City SCOTT BOULEVARD 1ST AVENUE ROCHESTER AVENUE 6 3 2 3 2.5 97 98 Coralville 2ND STREET WESTCOR DRIVE MERCHANT LANE 4 2 1 6 2.5 97 99 North Liberty NORTH LIBERTY ROAD DUBUQUE STREET PENN STREET 3 2 2 4 2.5 97 100 Iowa City 1ST AVENUE STUART COURT ROCHESTER AVENUE 3 2 1 6 2.5 97 101 Coralville 12TH AVENUE OLLINGER DRIVE MAPLEWOOD DRIVE 4 2 1 6 2.5 97 102 Iowa City MUSCATINE AVENUE 5TH AVENUE 4TH AVENUE 3 2 2 4 2.5 97 103 Iowa City NORTH DODGE STREET NORTHGATE DRIVE I-80 WB 4 2 1 5 2.25 103 104 Iowa City MCCOLLISTER BOULEVARD GILBERT STREET RIVERSIDE DRIVE 4 2 1 5 2.25 103 57 ID Jurisdiction Street Name Location of First Node Location of Second Node Total Number of Collisions Collision Points Severity Points Crash Rate Points Combined Score Midblock Rank 105 Tiffin HIGHWAY 6 NORTH CROELL AVENUE PARK ROAD 3 2 2 3 2.25 103 106 Coralville 2ND STREET 23RD AVENUE 22ND AVENUE/ CAMP CARDINAL BOULEVARD 3 2 1 5 2.25 103 107 Iowa City MORMON TREK BOULEVARD WALDEN ROAD ROHERT ROAD 3 2 1 5 2.25 103 108 North Liberty FOREVERGREEN ROAD JONES BOULEVARD HWY 965 3 2 1 5 2.25 103 109 Iowa City GILBERT STREET MCCOLLISTER BOULEVARD SYCAMORE STREET 3 2 1 5 2.25 103 110 Iowa City HIGHWAY 6 TAYLOR DRIVE SYCAMORE STREET 4 2 2 2 2 110 111 Iowa City HIGHWAY 6 HEINZ ROAD SCOTT BOULEVARD 4 2 1 4 2 110 112 Iowa City HIGHWAY 1 RUPPERT ROAD MILLER AVENUE 3 2 1 4 2 110 113 Iowa City HIGHWAY 6 BOYRUM STREET KEOKUK STREET 4 2 1 4 2 110 114 North Liberty RANSHAW WAY NORTH DUBUQUE STREET PENN STREET 3 2 1 4 2 110 115 Tiffin IRELAND AVENUE VILLAGE DRIVE CLEAR CREEK PARK 3 2 1 4 2 110 116 Iowa City SCOTT BOULEVARD COURT STREET MUSCATINE AVENUE 3 2 1 4 2 110 117 Coralville CAMP CARDINAL BOULEVARD CAMP CARDINAL ROAD KENNEDY PARKWAY 4 2 1 4 2 110 58 ID Jurisdiction Street Name Location of First Node Location of Second Node Total Number of Collisions Collision Points Severity Points Crash Rate Points Combined Score Midblock Rank 118 Iowa City DUBUQUE STREET FOSTER ROAD RIDGE ROAD 4 2 1 3 1.75 118 119 Iowa City DUBUQUE STREET LINDER ROAD I-80 WB RAMPS 3 2 1 2 1.5 119 120 Iowa City GILBERT STREET SOUTHGATE AVENUE MCCOLLISTER BOULEVARD 3 2 1 2 1.5 119