An exit ramp between 1st and 9th Avenues in Maywood that runs parallel with I-290 and Harrison St. The ramps between 1st and 9th Avenues have crash rates that are significantly higher than other areas on, and along, the Eisenhower and other Chicago area expressways. | Google Earth
Friday, December 30, 2016 || By Michael Romain || @maywoodnews
Drivers entering and exiting the I-290 Eisenhower Expressway on the ramps between 1st Ave. and 9th Ave. in Maywood may want to take some extra precautions.
According to a crash analysis overview included in the I-290 Eisenhower Expressway Draft Environmental Impact Statement (DEIS), released today by the Illinois Department of Transportation, the crash rate for ramps between 1st Ave. and 9th Ave. is nearly 400 percent higher than the crash rate for the section of I-290 that spans from I-88 to Kostner Ave. and nearly 500 percent higher than the section of I-290 spanning from Kostner to Racine Ave.
If one compares the crash rate of 1st Ave. to 9th Ave. ramps with the general crash rate of the Stevenson, Kennedy and Edens expressways, the disparity becomes even starker. See the charts below:
IDOT’s overview examines three-year crash data from 2011 to 2013, and three-year crash data from 2006 to 2008.
“Crashes per million vehicles per mile were calculated for each section of the local expressways using the crash data and traffic volumes from both of the three‐year study periods (2006‐2008 and 2011‐2013),” IDOT explains.
Why the comparison between 1st/9th, 25th/17th to Oakley/Damen and Homan/Sacramento?
“The six‐lane section of I‐290 between 25th Avenue and 1st Avenue was also further broken down for purposes of analyzing sections where changes in access were considered (between 25th Avenue and 17th Avenue, and between 9th Avenue and 1st Avenue),” IDOT notes.
“These sub‐sections have slip ramps connecting parallel frontage roads to I‐290. Two sub‐sections along the eastern eight‐lane section of I‐290 that were closest in ramp length and geometry to 9th Avenue and 1st Avenue were selected, at Homan Avenue to Sacramento Avenue and at Oakley Avenue to Damen Avenue. It is noted that the eastern sub‐sections benefit from the presence of an additional mainline lane in each direction and an auxiliary lane to aid in weaving maneuvers from
“It is noted that the eastern sub‐sections benefit from the presence of an additional mainline lane in each direction and an auxiliary lane to aid in weaving maneuvers from ramp to mainline and vice versa, both of which would contribute to a predicted reduction in crashes.”
Left: A car exiting I-290 at W. Congress Pkwy. and Sacramento Blvd. The crash rate on ramps between Homan and Sacramento is almost half that of ramps between 1st and 9th Avenues, (right), where the absence of additional mainline lanes separating cars traveling on frontage roads from those coming off of the expressway means drivers face an accelerated risk of getting into an accident.
Most crashes on I-290 are rear-end collisions, same-direction sideswipes and fixed object collisions off the roadway. These crashes occur most often during times of peak congestion, between 6 a.m. and 11 p.m.
“Many same‐direction sideswipes correlate to areas where there are numerous lane‐changing and weaving movements, such as near entrance and exit ramps,” IDOT notes.
The IDOT impact statement also examines the crash rate for crossroads, such as overpasses that traverse the expressway.
The most prevalent crashes that take place on frontage roads, or “roads that serve local traffic and run parallel to and adjacent to I‐290,” were crashes with parked vehicles, rear-ends and sideswipes.
To access more crash information, including crash summaries of full corridors, such as 1st Ave., 25th Ave. and Wolf Road, click here (the charts start on page 20).
Eisenhower Expressway Draft EIS Released for Public Comment
You can view the entire I-290 Eisenhower Expressway Draft Environmental Impact Statement, which was released today by the Illinois Department of Transportation as part of the I-290 modernization project, by clicking here.
The statement also includes traffic noise abatement analyses, among hundreds of pages of other detailed evaluation related to planned I-290 improvement projects.
Print versions of the EIS are also available at local libraries in the area. For a full list of those libraries, click here.
To submit a question or comment, click here.
IDOT will host two public meetings on the Eisenhower modernization project. One will take place at Proviso Math and Science Academy, 8601 W. Roosevelt Rd. in Forest Park, from 5:30 p.m. to 8:30 p.m. VFP