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NEW - 2017CollisionAnalysis - Jan19 City of Iowa City Traffic Collision Analysis 2015-2017 Analysis Completed By: Emily Bothell, Senior Transportation Engineering Planner Nate Bauer, Transportation Planning Intern January 2019 Table of Contents Introduction 1 Evaluation Process, Inputs and Weighted Formula 1 Intersection Evaluation 2 Intersection Assumptions 2 Top 10 Intersection Collision Locations 3 Top 10 Intersection Collision Locations by Quadrant 4 2013-2015 / 2015-2017 Collision Comparison 6 Intersection Capital Improvement Program Projects 7 Mid-Block Evaluation 8 Mid-Block Assumptions 8 Top 5 Mid-Block Collision Locations 8 Top 5 Mid-Block Collision Locations by Quadrant 10 2013-2015 / 2015-2017 Collision Comparison 11 Mid-Block Capital Improvement Program Projects 13 Potential Countermeasures 14 Per Capita Collision Comparisons 17 Complete Intersection Ranking 18 Complete Mid-Block Ranking 22 1 Introduction This report identifies high collision locations in Iowa City for the years 2015 through 2017. The goal of this report is to increase awareness of high collision locations. As a result, Iowa City will be able to identify and implement countermeasures designed to reduce collisions at these locations. The previous collision study analyzed collisions between years 2013 and 2015, which will be compared to the collisions that occurred between 2015 and 2017. The data used in this report was sourced from the Iowa Department of Transportation (Iowa DOT). The Iowa DOT obtains copies of collision reports from local jurisdictions to compile a database called the Iowa Crash Analysis Tool. This report utilizes the most complete and current data available from the Iowa DOT for the years 2015 through 2017. Evaluation Process Collision frequency was summarized for all intersection and mid-block locations in Iowa City. Locations with three or more collisions were evaluated for this report. The total number of intersection locations (locations with three or more collisions) within the Iowa City area is 171. The total number of mid-block collision locations (locations with three or more collisions) is 64. 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 explained in more detail below. Inputs 1. Number of collisions – This is the total number of collisions per location obtained from the Iowa Crash Analysis Tool during the years 2015-2017. Based on the number of collisions, each location was given a score. Scores are assigned as shown in Table 1. 2. Crash Rate – This is the total number of collisions per one-million vehicles divided by the total number of days per Annual Average Daily Traffic (AADT). Crash rates allow each intersection to be evaluated with a common denominator. The crash rate is then assigned a corresponding score as shown in Table 1. Intersection crash rate formula: (# Collisions) * (1,000,000) (# Days) * (Total entering AADT) Mid-block crash rate formula: (# Collisions) * (1,000,000) (# Days) * (Total AADT) * (segment length in miles) 3. Severity – This is the combined severity of all collisions per location. 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 then converted to a total severity score as shown in Table 1. Weighted Formula After points are assigned for the three categories, the points are entered into the Iowa DOT weighted ranking formula and organized from highest to lowest rank as shown on Pages 18-23. Formula: (Collision Points * 0.25) + (Crash Rate Points * 0.25) + (Severity Points * 0.5) 2 Table 1: Iowa DOT Evaluation Criteria and Associated Points Assumptions The following assumptions were made for collisions occurring at intersections: • Collisions occurring within 250 feet (+/- 50) feet from the intersection of streets will be included. • 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, hitting a parked car). • If the data record is incomplete regarding the manner of the crash, but still involves two vehicles, it will be counted. • If the roadway type is a commercial/residential drive, the crash will not be counted. • 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. • Collisions involving one vehicle will be counted, assuming the accident was most likely caused by the intersection. Top 10 Intersections Figure 1 displays the top ten intersections in Iowa City, between 2015 and 2017, with the highest combined score after taking into account the number of collisions, crash rate, and severity of collisions. Three of the ten intersections are located on Riverside Drive and four are sited along the Hwy 1/ Hwy 6 corridor. As shown in Table 2, the intersections of E Burlington Street/ S Gilbert Street and S Riverside Drive/ W Benton Street are both ranked sixth as they have the same combined score of 9.25. Similarly, the intersections of Riverside Drive/ Hwy 1 and Hwy 6, Hwy 1/ Mormon Trek Boulevard, and Madison Street/ W Burlington Street are all ranked eighth with a combined score of 8.75. 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 Intersection Evaluation 3 Ten Highest Ranking Intersections ID Intersection Location Intersection Rank 1 Sycamore St. and Hwy 6 1 2 S Gilbert St. and Hwy 6 2 3 Boyrum St. and Hwy 6 3 4 Melrose Ave. and Mormon Trek Blvd. 4 5 Riverside Dr. and W Burlington St. / Grand Ave. 5 6 E Burlington St. and S Gilbert St. 6 7 S Riverside Dr. and W Benton St. 6 8 Riverside Dr. and Hwy 1 / Hwy 6 8 9 Hwy 1 and Mormon Trek Blvd. 8 10 Madison St. and W Burlington St. 8 Table 2: Top 10 Intersection Collision Locations Riverside Dr. / Hwy 1/6 Figure 1: Top 10 Intersection Collision Locations 4 Top 10 Intersection Collision Locations by Quadrant In order to further evaluate the types of intersections with high collision/crash/severity rates, the City was divided into four quadrants defined by major arterials (Dubuque Street, Gilbert Street, Melrose Avenue, Burlington Street and Court Street). Figure 2 and Tables 3 and 4 display the top ten intersections with the highest combined score by quadrant. When analyzing the collisions by quadrant, it becomes evident that a majority of intersections with the highest combined score are located along major corridors or at intersections with higher volumes. The highest-ranking intersections in Quadrant 1 are primarily located along Melrose Avenue and Dubuque Street. In Quadrant 2 the highest collision locations are situated along Burlington Street and in downtown Iowa City. The majority of intersections with the highest -ranking collisions in Quadrant 3 are located along the Highway 6 corridor. Lastly, in Quadrant 4 the highest-ranking intersections are situated along Highway 1. Figure 2: Top 10 Intersection Collision Locations by Quadrant Q1 Q2 Q3 Q4 5 Ten Highest Ranking Intersections by Quadrant Intersection Rank Quadrant 1 2 West of Dubuque St. & North of Melrose Ave East of Dubuque St. & North of Burlington St./Court St. 1 Camp Cardinal Blvd. and Melrose Ave. Gilbert St. and Burlington St. 2 Kennedy Pkwy. And Melrose Ave. Iowa Ave. and Van Buren St. 3 Galway Dr. and Melrose Ave. Dodge St. and E Burlington St. 4 Dublin Dr. and Melrose Ave. Dodge St. and Iowa Ave. 5 Hawkeye Park Rd. and Melrose Ave. Governor St. and Iowa Ave. 6 Melrose Ave. and Westwinds Dr. E Jefferson St. and N Gilbert St. 7 Melrose Ave. and Mormon Trek Blvd. E Court St. and S 1st Ave. 8 Bartlett Rd. and Mormon Trek Blvd. E Market St. and N Linn St. 9 Cameron Way and Mormon Trek Blvd. N Scott Blvd. and Rochester Ave. 10 Mormon Trek Blvd. and Westwinds Dr. E Market St. and Johnson St. Ten Highest Ranking Intersections by Quadrant Intersection Rank Quadrant 3 4 East of Gilbert St. & South of Burlington St./Court St. West of Gilbert St. & South of Melrose Ave 1 Hwy 6 and Sycamore St. S Gilbert St. and Hwy 6 2 Hwy 6 and Boyrum St. S Riverside Dr. and W Benton St. 3 S 1st Ave. and Hwy 6 Hwy 1 and Mormon Trek Blvd. 4 Keokuk St. and Hwy 6 Hwy 1 and Hwy 6 5 Fair Meadows Blvd. and Hwy 6 Hwy 1 and Sunset St. 6 Heinz Rd. and Hwy 6 McCollister Blvd. and S Gilbert St. 7 Dickenson Ln. and Russell Dr. Hwy 1 and Orchard St. 8 Industrial Park Rd. and Hwy 6 Hwy 1 and Ruppert Rd. 9 Gilbert Ct. and Kirkwood Ave. Myrtle Ave and S Riverside Dr. 10 Broadway St. and Hwy 6 Cae Dr. and Rohret Rd. Table 3: List of Top 10 Intersection Collision Locations for Quadrants 1 and 2 Table 4: List of Top 10 Intersection Collision Locations for Quadrants 3 and 4 6 2013-2015 / 2015-2017 Collision Comparison In comparing the top ten intersections between 2013 and 2015 to those between 2015 and 2017, the data shows collision numbers, severity of collisions and collision rates continue to remain constant as shown in Figures 3 and 4. Two intersections moved into the top ten ranking (Riverside Dr./ Highway 1 and 6 and Highway 1/ Mormon Trek Boulevard) and two intersections moved out of the ranking (Riverside Drive/ Hawkins Drive and Highway 6/ Fair Meadows Boulevard). Figure 3 compares the total number of collisions for the top ten intersection locations between 2015 and 2017 to those between 2013 and 2015. Between 2013 and 2017, the intersection with the highest number of total collisions was S Gilbert Street/ Highway 6. Figure 3: Figure 4: 7 Figure 4 compares the three highest collision types for each intersection between 2013 and 2015 to those between 2015 and 2017. Across the ten intersections, rear-end collisions account for a majority of collisions followed by angle, oncoming left-turn collisions. 2018-2022 Capital Improvement Program Projects Of the top ten intersection collision locations, two intersections have projects scheduled in Iowa City’s 2018-2022 Capital Improvement Program. The Mormon Trek Boulevard four to three lane conversion will be completed in 2019 and will help to reduce the number of rear-end and angle, oncoming left-turn collisions by upwards of 25% because of the dedicated center left-turn lane. The conversion will also improve walkability with fewer lanes for pedestrians to cross, and traffic will be located farther from the sidewalk. The Madison Street and Burlington Street intersection will be reconstructed to add turn lanes on Madison Street and signal improvements, amongst others, in order to address pedestrian and vehicle traffic flows. These improvements will also help to reduce the number of rear-end collisions as vehicles will be able to queue in a dedicated turn-lane as compared to queuing in a through/ left-turn lane. Additionally, with only one dedicated through lane the number of broadside collisions may also decrease as opposing vehicles will only need to respond to one-lane of oncoming vehicles. This project will begin in 2019. Potential Countermeasures To date, staff reviewed the top ten intersection collision locations and have identified and/or implemented potential countermeasures at multiple intersections. • Hwy 6 & Sycamore Street: Staff is currently researching the flashing yellow arrow sequence at the intersection. • Hwy 6 & Gilbert Street: Staff installed a ‘Yield to Pedestrian’ sign on the northwest corner of the intersection for west to northbound right-turning vehicles. This will remind motorists to yield to pedestrians as they turn right. • Hwy 6 & Boyrum Street: Staff is reviewing the left-turn traffic signal poles, shields, etc. to determine if any adjustments need to be made. • Hwy 1/ Hwy 6 corridor: Staff reviewed the signal timings for yellow clearance and will adjust if necessary. Staff intends to continue to monitor the top ten intersection collision locations to identify potential countermeasures to decrease the number and severity of collisions. An overview of best practice countermeasures is available on Page 14. Table 5: CIP Projects 8 Assumptions The following are the assumptions made for collisions at mid-blocks: • Collisions occurring within 250 feet (+/- 50) feet from the intersection of nodes (nodes only include public streets) will be included. • Types of roadways include: all non-intersection, intersection with bike/pedestrian, other intersection, not reported, T-Intersection, and unknown. Cloverleaf freeway ramps and railroad crossings are not considered intersections. Roundabouts/traffic circles are intersections. Alleyways are not considered intersections, and collisions occurring in the alleyways will not be counted. Crashes on exit/entrance ramps for interstate freeways will not be counted. • Major Causes do not include: ran traffic signal, FTY at uncontrolled intersection, FTY making right turn on red signal, FTY from yield sign. • Collisions unlikely caused by the intersection (as ascertained from the crash report) will be counted. • If the roadway type is a commercial/private road (with other roads intersecting it), the crash will not be counted. If the roadway is a private commercial/residential driveway, the crash will be counted, except if there is a traffic controlling device on it at the main road (i.e. traff ic light). Accidents in alleyways/parking lots/institutional roads will not be counted. Accidents with vehicles entering or exiting alleyways/parking lots/institutional roads will be counted. • Collisions involving one vehicle will be counted. • Sideswipes while vehicles were traveling 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. • If the data record regarding the manner of the crash is incomplete, but involves at least one vehicle, it will be counted. • 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. Top 5 Mid-Block Collision Locations Figure 5 depicts the top five mid-block collision locations in Iowa City (2015-2017). Two of the five locations are located along the Highway 1 and 6 corridor. The other three locations are located along Riverside Drive, Dubuque Street and North Dodge Street. Table 6 lists the midblock rankings and their associated ID number. Mid-Block Evaluation 9 Table 6: Top 5 Mid-Block Collision Locations Five Highest Ranking Mid-Block Locations ID Mid-Block Location Mid-Block Rank 1 Hwy 1 between Sunset St. and Mormon Trek Blvd. 1 2 N Dubuque St. between Taft Speedway and Kimball Rd. 2 3 N Dodge St. between I-80 EB Ramp and Scott Blvd. 3 4 Hwy 6 between Valley Ave. and N Riverside Dr. 4 5 Hwy 6 between S Gilbert St. and Boyrum St. 5 Figure 5: Top 5 Mid-Block Collision Locations 10 Top 5 Mid-Block Collision Locations by Quadrant Figure 6 displays the top five mid-block collision locations by quadrant. The four quadrants are defined by major arterial streets, which allows for a comprehensive view of the highest ranking mid-block locations across Iowa City. Specific intersection information can be found in Tables 7 and 8. The highest ranking mid-block locations are primarily situated along major arterial and collector streets. The highest-ranking locations in Quadrant 1 are primarily located along Dubuque Street. In Quadrant 2 the highest collision locations are situated along North Dodge Street. In Quadrant 3 the mid-block collision locations are varied with several located along the Highway 6 corridor. Lastly, in Quadrant 4 the highest- ranking mid-block locations are situated primarily along Highway 1. Figure 6: Top 5 Mid-Block Collision Locations by Quadrant Q1 Q2 Q3 Q4 11 2013-2015 / 2015-2017 Mid-Block Collision Comparison In comparing the top five mid-block collision locations between 2013 and 2015 to those between 2015 and 2017, the data shows collision numbers, severity and collision rates continue to remain constant as shown in Figures 7 and 8. Hwy 1 between Sunset Street and Mormon Trek Boulevard experienced a significant increase in the number of collisions between 2015 and 2017 moving it from the third highest ranking location to the first. The midblock location on Hwy 6 between S Gilbert Street and Boyrum Street dropped from fourth to fifth in the intersection ranking and the combined score increased slightly from 8.25 to 8.5. Though the combined score increased slightly, the number of collisions, crash rate, and severity of collisions remained roughly the same. The midblock locations ranked second through fourth between 2015 and 2017 were not in the top five ranking between 2013 and 2015. These locations experienced an increase in collisions, severity, and crash rate. Ten Highest Ranking Intersections by Quadrant Intersection Rank Quadrant 1 2 West of Dubuque St. & North of Melrose Ave East of Dubuque St. & North of Burlington St./Court St. 1 N Dubuque St. between Taft Speedway and Kimball Rd. N Dodge St. between I-80 EB Ramp and Scott Blvd. 2 Hwy 6 between Valley Ave. and N Riverside Dr. Dodge St. between Governor St. and Brown St 3 N Dubuque St. between I-80 WB Ramp and I-80 EB Ramp N Dodge St. between I-80 WB Ramp and I-80 EB Ramp 4 N Dubuque St. between I-80 EB Ramp and Meadow Ridge Ln. N Dodge St. between Northgate Dr. and 1-80 WB Ramp 5 Newton Rd. between Woolf Ave. and S Riverside Dr. Scott Blvd. between N 1st Ave. and Rochester Ave. Ten Highest Ranking Intersections by Quadrant Intersection Rank Quadrant 3 4 East of Gilbert St. & South of Burlington St./Court St. West of Gilbert St. & South of Melrose Ave 1 Hwy 6 between S Gilbert St. and Boyrum St. Hwy 1 between Sunset St. and Mormon Trek Blvd. 2 Mall Dr. between Lower Muscatine Rd. and S 1st Ave. Hwy 1 between Hudson Ave. / Shirken Dr. and Orchard St. 3 Hwy 6 between Lakeside Dr. and Heinz Rd. Hwy 6 between S Riverside Dr. and Sturgis Corner Dr. 4 Governor St. between Burlington St. and Bowery St. Hudson Ave. between Benton St. and Hwy 1 5 Van Buren St. between Burlington St. and Bowery St. W Benton St. between Greenwood Dr. and Miller Ave. Table 7: List of Top 5 Mid-Block Collision Locations for Quadrants 1 and 2 Table 8: List of Top 5 Mid-Block Collision Locations for Quadrants 3 and 4 12 Figure 8 compares the four highest collision manners (rear-end, angle, oncoming left-turn, sideswipe, and broadside) for each mid-block location between 2013 and 2015 to those between 2015 and 2017. Across the five mid-block locations, rear-end collisions account for a majority of collisions followed by sideswipe collisions. All five mid-block locations experienced an increase in the total number of collisions. Figure 7: Figure 8: 13 2018-2022 Capital Improvement Program Projects Of the top five mid-block collision locations, two locations have projects scheduled in Iowa City’s 2018-2022 Capital Improvement Program. The N Dubuque Street project (Gateway Project) involved the reconstruction and elevation of Dubuque Street while also addressing pedestrian and traffic flows. The project is currently in the final stages of completion and may decrease the number of rear-end and angle-oncoming left-turn collisions, with the decrease in the posted speed limit from 30-mph to 25-mph. A resurfacing project on Highway 6 between Rocky Shore Drive and Hwy 1 and Hwy 6 will be completed in 2019. While the resurfacing may not have direct impacts on the number of collisions, new pavement markings may reinforce driver expectations and reduce collisions. Potential Countermeasures Staff intends to review the top five mid-block collision locations to identify potential countermeasures to decrease the number and severity of collisions. An overview of best practice countermeasures is available on Page 14. Table 9: CIP Projects 14 Potential Countermeasures After identifying the highest ranked collision locations in Iowa City, 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 will 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 15 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 16 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 17 The following data has been included to compare collision trends between 2013 and 2015 to those occurring between 2015 and 2017. The number of collisions per 1,000 people in Iowa City was compared to that of similar sized cities in Iowa. Between 2013 and 2017, the City of North Liberty had the fewest number of collisions per 1,000 people followed by the City of Cedar Rapids. Iowa City had the fifth lowest number of collisions per 1,000 people as compared to eleven other communities, whereas Davenport had the highest number of collisions. As shown in Table 10, the City of Iowa City averaged 57.3 collisions per 1,000 people from 2015-2017 and 57.1 collisions per 1,000 people from 2013- 2015. While Iowa City’s population and total number of collisions increased between these time frames, the per capita collision rate only increased marginally (0.2). As compared to the other communities, Iowa City has one of the lowest numbers of collisions per capita. Of the communities analyzed, the cities of Des Moines and Davenport had the highest rates of collisions per 1,000 persons. Table 10: Per Capita Collision Comparisons 2013-2017 City Collisions occurring between 2015-2017 Collisions occurring between 2013-2015 Population (2016) 2015-2017 Collisions Collisions per 1,000 persons Population (2010) 2013-2015 Collisions Collisions per 1,000 persons North Liberty 16,984 330 19.4 13,374 271 20.3 Cedar Rapids 129,537 6,236 48.1 126,326 5,799 45.9 Ames 64,073 3,239 50.6 58,965 3,124 53.0 Ankeny 53,413 3,000 56.2 45,582 2,574 56.5 Iowa City 72,385 4,149 57.3 67,862 3,875 57.1 West Des Moines 61,624 3,655 59.3 56,609 3,428 60.6 Waterloo 68,357 4,091 59.8 68,406 4,369 63.9 Sioux City 82,666 6,100 73.8 82,684 5,687 68.8 Council Bluffs 62,326 4,615 74.0 62,230 4,509 72.5 Coralville 20,078 1,624 80.9 18,907 1,516 80.2 Des Moines 212,859 17,296 81.2 203,433 15,367 75.5 Davenport 102,305 9,244 90.3 99,685 8,556 85.8 Source: 2016 ACS 5-Year Population Estimate and Iowa DOT Crash Analysis Tool Per Capita Collision Comparisons 18 ID Road 1 Road 2 Collisions Collision Points Crash Rate Crash Rate Points Severity Severity Points Combined Score Rank 1 Sycamore St. Hwy 6 41 15 1.44 6 53 14 12.25 1 2 S Gilbert St. Hwy 6 46 15 1.03 5 54 14 12.00 2 3 Boyrum St. Hwy 6 33 15 0.79 4 41 11 10.25 3 4 Melrose Ave. Mormon Trek Blvd. 29 15 0.93 4 39 10 9.75 4 5 Riverside Dr. W Burlington St. / Grand Ave. 36 15 0.72 3 38 10 9.50 5 6 E Burlington St. S Gilbert St. 32 15 0.99 4 34 9 9.25 6 7 S Riverside Dr. W Benton St. 32 15 0.82 4 36 9 9.25 6 8 Hwy 1 Hwy 6 28 14 0.61 3 34 9 8.75 8 9 Hwy 1 Mormon Trek Blvd. 32 15 0.90 4 32 8 8.75 8 10 Madison St. W Burlington St. 32 15 0.94 4 32 8 8.75 8 11 S 1st Ave. Hwy 6 25 13 0.87 4 31 8 8.25 11 12 Hwy 1 Sunset St. 25 13 0.78 4 27 7 7.75 12 13 Hawkins Dr. Hwy 6 23 12 0.45 2 27 7 7.00 13 14 Keokuk St. Hwy 6 21 11 0.59 3 25 7 7.00 13 15 Church St. N Dubuque St. 20 10 1.02 5 22 6 6.75 15 16 Iowa Ave. Van Buren St. 11 6 2.27 10 17 5 6.50 16 17 McCollister Blvd. S Gilbert St. 17 9 1.39 6 19 5 6.25 17 18 Dodge St. E Burlington St. 20 10 0.92 4 20 5 6.00 18 19 Fair Meadows Blvd. Hwy 6 17 9 0.85 4 19 5 5.75 19 20 E Burlington St. S Clinton St. 20 10 0.52 3 20 5 5.75 19 21 Heinz Rd. Hwy 6 14 7 1.05 5 18 5 5.50 21 22 Hwy 1 Orchard St. 18 9 0.71 3 20 5 5.50 21 23 Hwy 1 Ruppert Rd. 15 8 0.51 3 19 5 5.25 23 24 Myrtle Ave. S Riverside Dr. 16 8 0.55 3 18 5 5.25 23 25 Industrial Park Rd. Hwy 6 14 7 0.72 3 20 5 5.00 25 26 Dickenson Ln. Russell Dr. 5 3 22.60 15 5 1 5.00 25 27 Broadway St. Hwy 6 15 8 0.60 3 15 4 4.75 27 28 Dodge St. Iowa Ave. 12 6 1.08 5 14 4 4.75 27 29 Gilbert Ct. Kirkwood Ave. 11 6 1.06 5 13 4 4.75 27 30 Governor St. Iowa Ave. 12 6 1.38 6 12 3 4.50 30 31 Camp Cardinal Blvd. Melrose Ave. 14 7 0.59 3 14 4 4.50 30 32 Cae Dr. Rohret Rd. 12 6 0.80 4 14 4 4.50 30 33 E Burlington St. S Dubuque St. 14 7 0.57 3 16 4 4.50 30 34 Iowa Ave. S Riverside Dr. 16 8 0.45 2 16 4 4.50 30 35 S Gilbert St. Stevens Dr. 9 5 1.21 5 13 4 4.50 30 36 E Jefferson St. N Gilbert St. 12 6 0.69 3 14 4 4.25 36 37 N Dubuque St. Park Rd. 14 7 0.47 2 16 4 4.25 36 38 E Court St. S 1st Ave. 12 6 0.51 3 14 4 4.25 36 39 Kirkwood Ave. S Gilbert St. 13 7 0.48 2 13 4 4.25 36 40 Valley Ave. Hwy 6 11 6 0.50 2 13 4 4.00 40 41 E Market St. N Linn St. 10 5 1.01 5 10 3 4.00 40 Appendix: Complete Intersection Ranking 19 ID Road 1 Road 2 Collisions Collision Points Crash Rate Crash Rate Points Severity Severity Points Combined Score Rank 42 N Scott Blvd. Rochester Ave. 12 6 0.83 4 12 3 4.00 40 43 Muscatine Ave. S 1st Ave. 11 6 0.36 2 13 4 4.00 40 44 Muscatine Ave. S 7th Ave. 10 5 1.06 5 10 3 4.00 40 45 E Burlington St. S Capitol St. 12 6 0.40 2 14 4 4.00 40 46 Bowery St. Dodge St. 9 5 0.84 4 9 3 3.75 46 47 E Market St. Johnson St. 8 4 1.16 5 12 3 3.75 46 48 Muscatine Ave. S Scott Blvd. 9 5 0.77 4 9 3 3.75 46 49 S Gilbert St. Southgate Ave. 9 5 0.77 4 9 3 3.75 46 50 E Burlington St. Governor St. 10 5 0.53 3 12 3 3.50 50 51 Taylor Dr. Hwy 6 8 4 0.34 2 14 4 3.50 50 52 Cameron Way Mormon Trek Blvd. 10 5 0.62 3 10 3 3.50 50 53 E Market St. N Dubuque St. 11 6 0.49 2 11 3 3.50 50 54 N Dodge St. N Scott Blvd. 12 6 0.37 2 12 3 3.50 50 55 Lower Muscatine Rd. S 1st Ave. 10 5 0.60 3 10 3 3.50 50 56 Greenwood Dr. W Benton St. 10 5 0.72 3 12 3 3.50 50 57 Mormon Trek Blvd. W Benton St. 9 5 0.51 3 11 3 3.50 50 58 Mormon Trek Blvd. Westwinds Dr. 10 5 0.61 3 10 3 3.50 50 59 E College St. Lucas St. 5 3 1.77 8 5 1 3.25 59 60 E Market St. N Gilbert St. 7 4 0.61 3 11 3 3.25 59 61 Lower West Branch Rd. N Scott Blvd. 7 4 0.67 3 11 3 3.25 59 62 N Dodge St. Northgate Dr. 7 4 0.61 3 11 3 3.25 59 63 E Prentiss St. S Dubuque St. 6 3 1.34 6 6 2 3.25 59 64 E College St. S Gilbert St. 8 4 0.53 3 10 3 3.25 59 65 E Court St. S Scott Blvd. 8 4 0.58 3 10 3 3.25 59 66 N Riverside Dr. Hwy 6 9 5 0.19 1 11 3 3.00 66 67 E Burlington St. Lucas St. 7 4 0.48 2 9 3 3.00 66 68 Hawkeye Park Rd. Melrose Ave. 7 4 0.47 2 9 3 3.00 66 69 Bartlett Rd. Mormon Trek Blvd. 7 4 0.44 2 9 3 3.00 66 70 Bradford St. S 1st. Ave. 7 4 0.47 2 9 3 3.00 66 71 E Court St. S Gilbert St. 7 4 0.35 2 9 3 3.00 66 72 Iowa Ave. S Gilbert St. 8 4 0.49 2 10 3 3.00 66 73 Dodge St. E Washington St. 7 4 0.68 3 7 2 2.75 73 74 E Jefferson St. Governor St. 8 4 0.74 3 8 2 2.75 73 75 Melrose Ct. Melrose Ave. 7 4 0.55 3 7 2 2.75 73 76 Old Highway 218 Ruppert Rd. 5 3 0.30 2 9 3 2.75 73 77 Kirkwood Ave. Summit St. 8 4 0.52 3 8 2 2.75 73 78 Church St. Dodge St. 6 3 0.53 3 6 2 2.5 78 79 Hudson Ave. Hwy 1 7 4 0.28 2 7 2 2.50 78 80 Newton Rd. Hwy 6 7 4 0.32 2 7 2 2.50 78 81 Bowery St. Johnson St. 6 3 0.69 3 6 2 2.50 78 82 Iowa Ave. Lucas St. 4 2 1.29 6 4 1 2.50 78 83 Lower Muscatine Rd. Mall Dr. 6 3 0.58 3 6 2 2.50 78 84 E Court St. Muscatine Ave. 7 4 0.47 2 7 2 2.50 78 20 ID Road 1 Road 2 Collisions Collision Points Crash Rate Crash Rate Points Severity Severity Points Combined Score Rank 85 Kimball Ave. Prairie du Chien Rd. 4 2 0.96 4 6 2 2.50 78 86 Bowery St. S Gilbert St. 7 4 0.30 2 7 2 2.50 78 87 E Benton St. S Gilbert St. 7 4 0.43 2 7 2 2.50 78 88 E Washington St. S Gilbert St. 7 4 0.40 2 7 2 2.50 78 89 N Dubuque St. SW Ramp Curve 7 4 0.27 2 7 2 2.50 78 90 Capitol St. W Benton St. 7 4 0.36 2 7 2 2.50 78 91 Dodge St. E Jefferson St. 6 3 0.48 2 8 2 2.25 91 92 E Burlington St. Johnson St. 6 3 0.32 2 8 2 2.25 91 93 Dublin Dr. Melrose Ave. 5 3 0.34 2 7 2 2.25 91 94 E Market St. N Clinton St. 6 3 0.38 2 6 2 2.25 91 95 B'Jaysville Ln. / Foster Rd. N Dubuque St. 7 4 0.23 1 7 2 2.25 91 96 E Davenport St. N Gilbert St. 4 2 1.10 5 4 1 2.25 91 97 N 1st. Ave. Rochester Ave. 6 3 0.44 2 8 2 2.25 91 98 Friendship St. S 1st. Ave. 6 3 0.33 2 6 2 2.25 91 99 E Washington St. S Clinton St. 6 3 0.42 2 6 2 2.25 91 100 Liberty Dr. S Scott Blvd. 4 2 0.71 3 6 2 2.25 91 101 E Burlington St. Van Buren St. 6 3 0.34 2 6 2 2.25 91 102 Sturgis Corner Dr. Hwy 6 6 3 0.18 1 6 2 2.00 102 103 Dodge St. Market St. 4 2 0.30 2 6 2 2.00 102 104 E Court St. S 7th Ave. 5 3 0.54 3 5 1 2.00 102 105 E Burlington St. S Linn St. 5 3 0.22 1 7 2 2.00 102 106 E Burlington St. Summit St. 4 2 0.29 2 6 2 2.00 102 107 Lower Muscatine Rd. Sycamore St. 5 3 0.52 3 5 1 2.00 102 108 E Washington St. Johnson St. 4 2 0.69 3 4 1 1.75 108 109 Iowa Ave. Johnson St. 4 2 0.67 3 4 1 1.75 108 110 Abbey Ln. Mormon Trek Blvd. 5 3 0.41 2 5 1 1.75 108 111 Dodge St. Prairie Du Chien Rd. 5 3 0.33 2 5 1 1.75 108 112 N Dubuque St. Ronald St. 5 3 0.31 2 5 1 1.75 108 113 Mall Dr. S 1st Ave. 5 3 0.30 2 5 1 1.75 108 114 Keokuk St. Southgate Ave. 5 3 0.46 2 5 1 1.75 108 115 E Jefferson St. Van Buren St. 4 2 0.65 3 4 1 1.75 108 116 Miller Ave. W Benton St. 5 3 0.41 2 5 1 1.75 108 117 1st Ave Wayne St. 5 3 0.32 2 5 1 1.75 108 118 E Bloomington St. Governor St. 4 2 0.48 2 4 1 1.50 118 119 Miller Ave. Hwy 1 5 3 0.19 1 5 1 1.50 118 120 S Scott Blvd. Hwy 6 4 2 0.29 2 4 1 1.50 118 121 Brown St. N Dubuque St. 5 3 0.14 1 5 1 1.50 118 122 Church St. N Gilbert St. 3 1 0.52 3 3 1 1.50 118 123 E Jefferson St. N Linn St. 4 2 0.47 2 4 1 1.50 118 124 Hospital Loop Dr. Stadium Dr. 4 2 0.48 2 4 1 1.50 118 125 S Riverside Dr. Sturgis Corner Dr. 5 3 0.19 1 5 1 1.50 118 126 Sunset St. W Benton St. 4 2 0.30 2 4 1 1.50 118 127 Mormon Trek Blvd. Westside Dr. 4 2 0.30 2 4 1 1.50 118 21 ID Road 1 Road 2 Collisions Collision Points Crash Rate Crash Rate Points Severity Severity Points Combined Score Rank 128 Melrose Ave. Westwinds Dr. 4 2 0.25 2 4 1 1.50 118 129 S Scott Blvd. Wintergreen Dr. 4 2 0.46 2 4 1 1.50 118 130 Dodge St. E Bloomington St. 3 1 0.30 2 3 1 1.25 130 131 Dodge St. E College St. 3 1 0.28 2 3 1 1.25 130 132 2nd Ave. E Court St. 3 1 0.36 2 3 1 1.25 130 133 4th Ave. E Court St. 3 1 0.36 2 3 1 1.25 130 134 E College St. Governor St. 3 1 0.34 2 3 1 1.25 130 135 Boyrum St. Hollywood Blvd. 4 2 0.09 1 4 1 1.25 130 136 Maiden Ln. Kirkwood Ave. 3 1 0.29 2 3 1 1.25 130 137 Governor St. Market St. 3 1 0.25 2 5 1 1.25 130 138 Emerald St. Melrose Ave. 4 2 0.21 1 4 1 1.25 130 139 E Burlington St. Muscatine Ave. 4 2 0.24 1 4 1 1.25 130 140 I-80 WB Ramp N Dodge St. 4 2 0.18 1 4 1 1.25 140 141 Fairchild St. N Dubuque St. 4 2 0.25 1 4 1 1.25 140 142 N Riverside Dr. River St. 3 1 0.35 2 3 1 1.25 140 143 E Benton St. S Clinton St. 4 2 0.21 1 4 1 1.25 140 144 E Prentiss St. S Clinton St. 3 1 0.47 2 3 1 1.25 140 145 Highland Ave. S Gilbert St. 4 2 0.09 1 4 1 1.25 140 146 E Washington St. S Linn St. 3 1 0.31 2 3 1 1.25 140 147 E Court St. Summit St. 3 1 0.31 2 3 1 1.25 140 148 Burns Ave. Sycamore St. 3 1 0.48 2 3 1 1.25 140 149 Bowery St. Van Buren St. 3 1 0.34 2 3 1 1.25 140 150 S Capitol St. W Prentiss St. 3 1 0.45 2 3 1 1.25 140 151 N Scott Blvd. Washington St. 3 1 0.27 2 3 1 1.25 140 152 S 1st Ave. Washington St. 3 1 0.29 2 3 1 1.25 140 153 W Benton St. Westgate St. 3 1 0.35 2 5 1 1.25 140 154 Hwy 1 Westport Plaza 4 2 0.16 1 4 1 1.25 140 155 Grand Ave. Ct. Grand Ave. 3 1 0.11 1 3 1 1.00 155 156 Keokuk St. Kirkwood Ave. 3 1 0.21 1 3 1 1.00 155 157 Lucas St. Kirkwood Ave. 3 1 0.21 1 3 1 1.00 155 158 Galway Dr. Melrose Ave. 3 1 0.18 1 3 1 1.00 155 159 Kennedy Pkwy Melrose Ave. 3 1 0.18 1 3 1 1.00 155 160 E Jefferson St. N Clinton St. 3 1 0.23 1 3 1 1.00 155 161 E Bloomington St. N Dubuque St. 3 1 0.17 1 3 1 1.00 155 162 E Davenport St. N Dubuque St. 3 1 0.18 1 3 1 1.00 155 163 E Jefferson St. N Dubuque St. 3 1 0.25 1 5 1 1.00 155 164 Hickory Heights Ln. N Scott Blvd. 3 1 0.21 1 3 1 1.00 155 165 N 1st Ave. N Scott Blvd. 3 1 0.17 1 3 1 1.00 155 166 Hwy 1 Naples Ave. 3 1 0.24 1 5 1 1.00 155 167 McCollister Blvd. Old Highway 218 3 1 0.21 1 3 1 1.00 155 168 Grand Ave. S Grand Ave. 3 1 0.15 1 3 1 1.00 155 169 N Dubuque St. Taft Speedway 3 1 0.12 1 3 1 1.00 155 170 Orchard St. W Benton St. 3 1 0.25 1 3 1 1.00 155 171 Melrose Ave. Westgate St. 3 1 0.16 1 3 1 1.00 155 22 ID Street Node 1 Node 2 Collisions Collision Points Crash Rate Crash Rate Points Severity Severity Points Combined Score Mid- block Rank 1 Hwy 1 Sunset St. Mormon Trek Blvd. 32 15 3.39 14 34 9 11.75 1 2 N Dubuque St. Taft Speedway Kimball Rd. 31 14 3.25 15 35 9 11.50 2 3 N Dodge St. I-80 EB Ramp Scott Blvd. 25 13 3.44 14 29 8 10.75 3 4 Hwy 6 Valley Ave. N Riverside Dr 25 13 2.11 9 31 8 9.50 4 5 Hwy 6 S Gilbert St. Boyrum St. 18 9 3.59 15 20 5 8.50 5 6 N Dubuque St. I-80 WB Ramp I-80 EB Ramp 13 7 5.14 15 24 6 8.25 6 7 Hwy 1 Hudson Ave. / Shirken Dr. Orchard St. 9 5 4.36 15 20 5 7.50 7 8 N Dubuque St. I-80 EB Ramp Meadow Ridge Ln. 17 9 2.49 10 17 5 7.25 8 9 Newton Rd. Woolf Ave. S Riverside Dr. 11 6 3.27 14 13 4 7.00 9 10 Hwy 6 W Newton Rd. Valley Ave. 11 6 5.04 15 11 3 6.75 10 11 S Clinton St. Washington St. Burlington St. 10 5 12.85 15 10 3 6.50 11 12 S Capitol St. Washington St. Burlington St. 10 5 85.52 15 10 3 6.50 11 13 Melrose Ave. Westwinds Dr. Mormon Trek Blvd. 7 4 4.13 15 7 2 5.75 13 14 Hwy 6 S Riverside Dr. Sturgis Corner Dr. 8 4 8.23 15 8 2 5.75 13 15 Mall Dr. Lower Muscatine Rd. S 1st Ave. 5 3 7.61 15 5 2 5.50 15 16 Iowa Ave. S Riverside Dr. Madison St. 5 3 4.06 15 5 2 5.50 15 17 Governor St. Burlington St. Bowery St. 6 3 12.08 15 6 2 5.50 15 18 Van Buren St. Burlington St. Bowery St. 6 3 24.16 15 6 2 5.50 15 19 Dodge St. Governor St. Brown St. 6 3 3.57 15 8 2 5.50 15 20 Johnson St. Court St. Bowery St. 6 3 30.23 15 8 2 5.50 15 21 Hudson Ave. Benton St. Hwy 1 5 3 182.97 15 5 2 5.50 15 22 S 1st Ave. J St. / Bradford Dr. Mall Dr. 5 3 4.43 15 7 2 5.50 15 23 W Benton St. Greenwood Dr. Miller Ave. 5 3 4.11 15 5 2 5.50 15 24 Hwy 6 Lakeside Dr. Heinz Rd. 10 5 2.03 9 16 4 5.50 15 25 Burlington St. S Riverside Dr. Madison St. 10 5 2.50 10 12 3 5.25 25 26 Madison St. Washington St. Burlington St. 4 2 8.92 15 8 2 5.25 25 27 Westwinds Dr. Roberts Rd. Mormon Trek Blvd. 4 2 14.30 15 6 2 5.25 25 28 Melrose Ave. Dublin Dr. Hawkeye Park Rd. 4 2 5.25 15 8 2 5.25 25 29 Hwy 1 Westport Plaza Ruppert Rd. 11 6 1.98 8 11 3 5.00 29 30 S 1st Ave. Mall Dr. Lower Muscatine Rd. 7 4 2.47 10 9 3 5.00 29 31 W Benton St. Oaknoll Dr. Greenwood Dr. 4 2 15.11 15 4 1 4.75 31 32 Hwy 6 Hawkins Dr. Newton Rd. 4 2 9.50 15 4 1 4.75 31 33 S Riverside Dr. Benton St. Sturgis Corner Dr. 4 2 10.10 15 4 1 4.75 31 Appendix: Complete Mid-Block Ranking 23 ID Street Node 1 Node 2 Collisions Collision Points Crash Rate Crash Rate Points Severity Severity Points Combined Score Mid- block Rank 34 Hawkins Dr. Finkbine Commuter Dr. Elliot Dr. 5 3 2.99 12 7 2 4.75 31 35 Emerald St. Melrose Ave. Benton St. 3 1 6.87 15 3 1 4.50 35 36 Primrose Ct. Whispering Meadow Dr. Cul de Sac 3 1 159.59 15 3 1 4.50 35 37 Williams St. Muscatine Ave. Wayne Ave. 3 1 83.56 15 3 1 4.50 35 38 Duck Creek Dr. Deerfield Dr. Rohret Rd. 3 1 15.57 15 3 1 4.50 35 39 Taylor Dr. Tracy Ln. Sandusky Dr. 3 1 14.60 15 3 1 4.50 35 40 Gilbert St. Benton St. Kirkwood Ave. 3 1 4.79 15 3 1 4.50 45 41 S Scott Blvd. American Legion Rd. Hampton St. 3 1 5.56 15 3 1 4.50 45 42 Benton St. S Riverside Dr. Capitol St. 6 3 2.73 11 8 2 4.50 45 43 S Riverside Dr. Burlington St. Myrtle Ave. 10 5 1.61 7 10 3 4.50 45 44 S 1st Ave. D St. F St. 4 2 3.20 13 4 1 4.25 44 45 Hwy 6 Heinz Rd. Scott Blvd. SE 8 4 2.10 9 8 2 4.25 44 46 Melrose Ave. Camp Cardinal Blvd. Kennedy Pkwy. 7 4 2.21 9 7 2 4.25 44 47 Melrose Ave Finkbine Ln. MacBride Rd. 5 3 3.20 13 7 2 4.10 47 48 N Dodge St. I-80 WB Ramp I-80 EB Ramp 6 3 1.94 8 6 2 3.75 48 49 Melrose Ave. Hawkeye Park Rd. Westwinds Dr. 6 3 1.81 8 8 2 3.75 48 50 Park Rd. N Riverside Dr. Dubuque St. 4 2 2.39 10 4 1 3.50 50 51 N Riverside Dr. River St. Hwy 6 3 1 2.63 11 3 1 3.50 50 52 Old Hwy 218 Ruppert Rd. Imperial Ct. 5 3 1.20 5 9 3 3.50 50 53 S Riverside Dr. Iowa Ave. Burlington Dr. 5 3 1.27 6 5 2 3.25 53 54 Hwy 6 Sturgis Corner Dr. Gilbert St. 8 4 1.06 5 8 2 3.25 53 55 Hwy 1 Ruppert Rd. Miller Ave. 4 2 1.60 7 6 2 3.25 53 56 Hwy 6 Boyrum St. Keokuk St. 5 3 1.36 6 5 2 3.25 53 57 Hwy 6 Keokuk St. Broadway St. 5 3 1.31 6 5 2 3.25 53 58 S Riverside Dr. Myrtle Ave. Benton St. 7 4 1.07 5 7 2 3.25 53 59 Hwy 1 Sunset St. Westport Plaza 5 3 0.94 4 5 2 2.75 59 60 Old Hwy 218 Hwy 1 Ruppert Rd. 3 1 1.58 7 3 1 2.50 60 61 N Dubuque St. Foster Rd. Taft Speedway St. 3 1 1.39 6 3 1 2.25 61 62 Mormon Trek Blvd. 1st St. Hawkeye Park Rd. 4 2 0.69 3 6 2 2.25 61 63 N Dodge St. Northgate Dr. I-80 WB Ramp 3 1 0.78 4 3 1 1.75 63 64 Scott Blvd. N 1st Ave. Rochester Ave. 3 1 0.39 2 3 1 1.25 64