Oak Forest, IL (May 15, 2026) – A bicyclist suffered critical injuries following a crash Thursday evening at the intersection of 159th Street and Ridgeland Avenue in Oak Forest. Emergency units responded to the scene around 6:38 p.m. after reports of a collision involving a cyclist and a vehicle.
According to preliminary information, an 18-year-old woman from Tinley Park was exiting a bike path and entering the roadway when she was struck by a westbound vehicle traveling along 159th Street. The vehicle was driven by a 76-year-old man from Tinley Park.
The bicyclist sustained critical injuries and was taken to Advocate Christ Medical Center for treatment. The driver’s condition was not reported, and additional details about the moments leading up to the collision have not yet been released.
Portions of 159th Street and Ridgeland Avenue remained closed for several hours while emergency units documented the scene and cleared the roadway for traffic.
Authorities continue to investigate the cause of the crash, and more details will be released as they become available. We are thinking of those injured as they receive medical care.
What Is Commonly Reviewed in Crashes Involving Cyclists Entering Roadways?
After crashes involving bicyclists entering roadways from trails or paths, investigators often examine sightlines, traffic flow, and the cyclist’s visibility to approaching drivers. Intersections between bike paths and busy streets can create situations in which reaction time is limited.
Vehicle speed and roadway design are also reviewed to determine how quickly drivers could respond to a cyclist entering traffic. Investigators may examine traffic signals, signage, and lane configurations in the area.
Damage patterns on the bicycle and vehicle can help establish the angle and point of impact. These findings are often used to reconstruct how the collision unfolded in the moments before the crash.
