- Randall Road at I-90 Feasibility Study
Our team is performing a feasibility study on behalf of the Kane County Division of Transportation to analyze existing conditions and develop concept-level improvements to Randall Road between Big Timber Road and Illinois Route 72, with a focus on the Randall Road interchange with I-90 (the Jane Addams Tollway).
We coordinated extensively with the Illinois Tollway, City of Elgin, and local commercial and municipal stakeholders to develop a better understanding of the traffic, crash and development history of the corridor. Traffic counts at the nine signalized intersections and three non-signalized intersections in the corridor were used to develop a Vissim model of existing conditions, which was calibrated against on-site measurements to confirm its quality.
The project team prepared a crash analysis technical memorandum to analyze over 600 crashes reported in the corridor in the most recent five years available. Investigations into noise, bridge conditions, environmental conditions and drainage characteristics were performed as well. A public meeting shared the results of our investigations so that stakeholders and local officials could better understand critical elements of the findings and offer their input.
The crash reports were delivered to our term as over 600 scanned police reports, rather than as a set of analyzed data. Information was extracted by scanner and read into a database, which allowed efficient analysis and saved approximately 150 hours of manual data entry. Public outreach needed to extend to commuters and corridor businesses, which are more difficult to reach but are central to the success of the design effort because of their greater representation in existing traffic issues. We used an aggressive social media and internet campaign to attract interest, featuring ground-mounted road signs and a project website that recorded almost 3,000 independent visitors in its first three months of operation.
The Vissim model of the corridor required coordination with an ongoing Kane County project to install an adaptive traffic signal timing system throughout the corridor. Conversations with the system designer resulted in a more flexible and accurate model that will better react to conditions not yet anticipated.
- Geometric concept development
- Horizontal and vertical geometric design
- Project website
- Public outreach
- Storm sewer design
- Traffic analysis
- Traffic control and construction staging plan
- Traffic signal design