TRAFFIC ENGINEERING

I-290 at Hillside for IDOT

SINGH provided civil engineering services for the Hillside improvement project as a subconsultant to Parsons Brinckerhoff. Project consisted of reconstruction of Mannheim Road, Roosevelt Road, Mannheim Road Interchange, removal and replacement of structure carrying Westchester Boulevard, new structure carrying Hillside Drive and Wolf Road over I-290, traffic signal modernization and interconnection. SINGH was responsible for the preparation of traffic signal plans for eight intersections and interconnect plans for Mannheim and Roosevelt Road. Construction cost $90M.

Wacker Drive Reconstruction from Congress Parkway to Adams Street for CDOT

SINGH is providing traffic signal design services as a subconsultant to TY LIN International. The project consists of reconstruction of upper and lower Wacker Drive, traffic signal modernization, and new lighting system. SINGH is responsible for the preparation of traffic signal plans for nine intersections, estimates and specifications. Construction cost $100M.

I-290 from 12/20/45 to IL 50, for IDOT

The project consists of reconstruction of the expressway facility within the limits of the project to provide an additional (fourth) lane in each direction as a high occupancy vehicle lane (HOV). This includes numerous interchanges to be reconstructed, as well as railroad bridges and retaining walls. The proposed project is to be based on an HOV feasibility study that was prepared for the corridor in 1998 and is compatible with the Phase I study for Interstate 290 to the west that was completed in January 2000. The work includes alternate geometric studies, interchange and intersection design studies, bridge studies, combined design report, accident analysis, location design study and other studies as required. SINGH was responsible for manual and machine counts, speed and delay runs. Project cost $500M.

Prairie Parkway, Northeastern IL, for IDOT

Prairie Parkway is a proposed new regional transportation facility in Northeastern Illinois. Phase I engineering services to include analyzing the existing transportation system to determine traffic needs for the region; evaluating the full range of alternatives including the no build alternative; upgrading existing routes; enhancing other modes of transportation including mass transit and a new highway facility on new alignment and determining the social, economic and environmental effects of the selected alternative. The Prairie Parkway Phase I study to include the preparation of financial plans, a corridor report, a design report, an environmental impact statement and other reports as required. SINGH counted the traffic data manually and with machines; conducted delay and timing runs. Project cost $500M.