Advancing Self-Explaining Streets Phase 2: Evaluating the Use of Roadway Design Elements and Target Speeds to Reduce Operating Speed
Speeding contributes to one-third of fatalities on roadways in Illinois, according to the Illinois Department of Transportation. One way to reduce speeding is the use of self-explaining roads (also referred to as self-enforcing roads), which use visual cues and physical layouts to control speeds. Using self-explaining roads can encourage drivers to adopt appropriate speeds based on a road’s characteristics and features, reducing the risk of crashes and improving overall safety. Researchers will identify how various roadway characteristics reduce speeding and crashes as well as develop a model to predict their relationship. They will conduct a before-and-after study to evaluate the effectiveness of self-explaining roads strategies across urban, suburban and rural settings. The findings of this study will inform how practice and guidance can be improved to implement self-explaining roadways.
Language
- English
Project
- Status: Active
- Funding: $300,000.00
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Contract Numbers:
R27-279
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Sponsor Organizations:
Illinois Department of Transportation
Bureau of Materials and Physical Research
126 East Ash Street
Springfield, IL United States 62704-4766 -
Managing Organizations:
University of Illinois, Urbana-Champaign
Illinois Center for Transportation
1611 Titan Drive
Rantoul, IL United States 61866 -
Principal Investigators:
Talebpour, Alireza
- Start Date: 20250701
- Expected Completion Date: 20270630
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Before and after studies; Countermeasures; Highway design; Speed control; Traffic safety
- Geographic Terms: Illinois
- Subject Areas: Design; Highways; Safety and Human Factors;
Filing Info
- Accession Number: 01959811
- Record Type: Research project
- Source Agency: Illinois Department of Transportation
- Contract Numbers: R27-279
- Files: RIP, STATEDOT
- Created Date: Jun 30 2025 5:01PM