The Strategic Regional Arterial (SRA) system is intended to carry larger volumes of traffic at higher speeds as a complement to the region's expressway system. Efforts are made to preserve the level of service on these roadways through appropriate access and traffic signal locations and spacing. To ensure a high level of service for traffic on the SRA system, the Illinois Department of Transportation maintains more restrictive criteria in determining the need for and spacing of traffic signals and access points.
As CMAP develops small-area traffic projections for implementing agencies, we also check whether the location in question is on a Strategic Regional Arterial and direct the applicant to review the relevent SRA report for its recommendations.