1 30 12 Automated Traffic Enforcement_Most Accident Prone IntersectionsDubuque's Most Accident -Prone Intersections
By Corporal Travis Kramer, Dubuque Police Department
Objectives: This report will identify the ten most accident -prone intersections within the
City of Dubuque in 2010 (the most recent data available) and review historical trends for
help in determining the most effective locations for photo enforcement of traffic signals.
Source: Data and software (Crash Mapping Analysis Tool) provided by the Iowa
Department of Transportation were used to meet the objective.
Incidents: This report reviewed all traffic accidents reported to the Iowa DOT in 2010
regardless of severity. Incidents reported to have happened within a radius of 100 feet
were included in the totals for the respective intersections in order to include
intersection related collisions that did not take place within the limits of the intersection
itself.
Results: A total of eleven intersections are listed due to a six way tie in 2010. Also
included are results from past reviews: "Top 10 in 2009," "Top 10 in 2008," and "The
Dirty Dozen 2003 - 2007 ". Years are listed in reverse chronological order due to the fact
that the city has taken steps to address high accident rates, such as reconfiguration of
traffic lanes and traffic lights, so older data is less valuable.
2010
There were a total of 1432 reported traffic accidents within the City of Dubuque in
2010. The top ten most accident -prone intersections for 2010:
1. Dodge / Locust (29)
2. Dodge / Hill (22)
3. JFK / Pennsylvania (16)
4. 20th / White (14)
5. Dodge / University (11)
6T. 9th / Central (9)
6T. 9th / Elm (9)
6T. 14th / Central (9)
6T. 14th / Iowa (9)
6T. Arterial / Chavenelle (9)
6T. Dodge / JFK (9)
These intersections account for 146 accidents, or 10.19% of the 2010 total.
Major Cause Summary reports for each of these locations are attached. The same
reports for all 1432 accidents in 2010 and for accidents 2001 -2010 that list "Ran Traffic
Summary" as the major cause are also attached.
2009
There were a total'of 1311 reported traffic accidents within the City of Dubuque in
2009. The top ten most accident -prone intersections for 2009:
1. 20t1 / White (15)
2. Dodge / Wacker (13)
3T. 17th / Central (12)
3T. Arterial / Pennsylvania (12)
5. Arterial /Asbury (11)
6T. 14th / Central (10)
6T. JFK / Pennsylvania (10)
8T. Dodge / Locust (8)
8T. Grandview / Loras (8)
8T. Dodge / Cedar Cross (8)
These intersections account for 107 accidents, or 8.16% of the 2009 total.
2008
There were a total of 1396 reported traffic accidents within the City of Dubuque in
2008. The top ten most accident -prone intersections for 2008:
1. Dodge / Locust (18)
2. Dodge / Hill (15)
3. JFK / Pennsylvania (13)
4T. Asbury / Holliday (11)
4T. Asbury / Arterial (11)
4T.
4T.
8T.
• 8T.
10.
Hillcrest -North / JFK (11)
17th / Jackson (11)
Asbury / JFK (10)
20th / Central (10)
14th / Central (9)
These intersections account for 119 accidents, or 8.52% of the 2008 total.
2007
There were a total of 1505 reported traffic accidents within the City of Dubuque in
2007. The top twelve most accident -prone intersections for 2007:
1. Dodge / Locust (23)
2. JFK / Pennsylvania (17)
3. Asbury / NW Arterial (14)
4. Dodge WB on -ramp / Hill (13)
5. Dodge / NW Arterial (12)
6T. 14th / Central (10)
6T. Dodge / Cedar Cross (10)
6T. Dodge / University (10)
6T. Dodge / Wacker (10)
6T. NW Arterial / Pennsylvania (10)
11T. Asbury / University (9)
11T. Crescent Ridge / Dodge (9)
These intersections account for 147 accidents, or 9.77% of the 2007 total.
2006
There were a total of 1400 reported traffic accidents within the City of Dubuque in
2006. The top twelve most accident -prone intersections for 2006:
1. JFK / Pennsylvania (22)
2. Dodge / Wacker (19)
3. Dodge / Locust (18)
4. Asbury / NW Arterial (15)
5. Dodge / NW Arterial (11)
6T. 20th / Central (10)
6T. Carter /JFK (10)
6T. JFK / Wacker (10)
9T. 17th / Central (9)
9T. NW Arterial / Pennsylvania (9)
11T. 14th / Central (8)
11T. Grandview / Loras (8)
These intersections account for 149 accidents, or 10.64% of the 2006 total.
2005
There were a total of 1349 reported traffic accidents within the City of Dubuque in
2005. The top thirteen (due to a tie) most accident -prone intersections for 2005:
1. Asbury / NW Arterial (18)
2. Cedar Cross /Dodge Frontage (15)
3. Dodge / Wacker (14)
4T. Dodge / Cedar Cross (12)
4T. Dodge / Locust (12)
6. 14th / White (11)
7T. 14th / Locust (10)
7T. Asbury / JFK (10)
7T. Dodge / NW Arterial (10)
10T. Carter / JFK (9)
10T. Century / Dodge (9)
10T. Devon / Dodge (9)
10T. JFK / Pennsylvania (9)
These intersections account for 148 accidents, or 10.97% of the 2005 total.
2004
There were a total of 1279 reported traffic accidents within the City of Dubuque in
2004. The top twelve most accident -prone intersections for 2004:
1. JFK / Pennsylvania (18)
2. 17th / Central (16)
3. Carter / JFK (15)
4. Dodge / Wacker (14)
5. Devon / Dodge (12)
6T. 20th / Central (11)
6T. Asbury / JFK (11)
8. Loras / Main (10)
9T. Dodge / Cedar Cross (9)
9T. Dodge / Locust (9)
11T. 20th / Elm (8)
11T. Dodge WB ramp / Grandview (8)
These intersections account for 141 accidents, or 11.02% of the 2004 total.
2003
There were a total of 1260 reported traffic accidents within the City of Dubuque in
2003. The top fourteen (due to a tie) most accident -prone intersections for 2003:
1. Dodge / Locust (17)
2. Asbury / NW Arterial (15)
3T. Asbury /JFK (12)
3T. Carter / JFK (12)
3T. JFK / University (12)
6. Iowa / Loras (11)
7T. 17th / Central (10)
7T. Dodge / Wacker (10)
9T. 20th / White (9)
9T. Arterial / Pennsylvania (9)
9T. Dodge / Century (9)
9T. Hillcrest (South) / JFK (9)
9T. JFK / Pennsylvania (9)
9T. JFK / Wacker (9)
These intersections account for 153 accidents, or 12.14% of the 2003 total.