Traffic Engineering

 

Austin Street Traffic Signalization, Houston, Texas

CP&Y was the traffic engineer for new traffic signals for 20 intersections along Austin Street from Commerce St. to Pierce St. in downtown Houston for the City of Houston.  These improvements were undertaken as part of an overall improvement plan to Austin St. which included a large storm sewer trunk line, new sanitary and water utilities, and new pavement.  The new traffic signals incorporated design features to accommodate Houston Metro's bus transit and the Houston Grand Prix annual race.

Wurzbach Road Traffic Signalization from IH-10 to Ironside, San Antonio, Texas

CP&Y provided engineering design services for the upgrade and widening of this four lane divided city street to include new dedicated left and right turn lanes for TxDOT and the City of San Antonio. The project included the upgrade of traffic and pedestrian signals on the IH-10 frontage roads, as well as the installation of new signals at Colonnade and Ironside. These signals included traffic and pedestrian LED heads as well as Video Imaging Vehicle Detection Systems (VIVDS). The signals at the IH-10 frontage roads were configured as TxDOT signals, while the signals at Colonnade and Ironside were configured as City of San Antonio signals. Interconnect plans were also provided.

IH 30 Corridor Interstate Access Justification Report, Texarkana, Texas

CP&Y provided the IH 30 interstate access justification report (IJR) which analyzed both “no build” and “build” conditions along the IH 30 corridor. Freeway capacity analyses were performed for both scenarios for all mainlane segments, weaving areas and ramps. The analyses were then compared to determine if the proposed roadway design would improve the projected corridor operations. The results of the analyses were summarized in the IJR and submitted to TxDOT and FHWA. The highway capacity analysis evaluated the proposed corridor to determine whether the recommended roadway improvements would operate at acceptable levels of service (LOS) with the new roadway design. The IJR freeway capacity results were used and intersection LOS analyses were conducted at all intersections along both the IH 30 corridor to determine if the proposed geometries would adequately accommodate the projected traffic volumes. Recommendations for improvements were then provided.

CP&Y provided engineering design services for the 2.5 miles of reconstruction of US 90A and 1.5 miles of SH 6 in Sugar Land. The project included new traffic and pedestrian signals on the SH 6 frontage roads at University Boulevard and US 90A, as well as the installation of new signals at First Colony/SH6 and Ulrich /US 90A. These signals included traffic and pedestrian LED heads, Video Imaging Vehicle Detection Systems (VIVDS), Decorative Mast Arms and Poles, Opticom Communications for emergency vehicles and Spread Spectrum Communications for traffic signal interconnection and control.  Project required coordination efforts between TxDOT, the City of Sugar Land and Union Pacific Rail Road.  Closed Circuit Television Camera Layout Plans were also provided for each intersection.

CP&Y provided engineering design services for the reconstruction of 0.9 miles of 4-lane rural roadway to a 4-lane urban roadway with a raised center median, right and left turn bays.  The project included new traffic and pedestrian signals on SH 29 at Wolf Ranch Parkway and the IH 35 diamond interchange frontage roads. This signal design included traffic and pedestrian LED heads, Video Imaging Vehicle Detection Systems (VIVDS), detailed Phasing and Wiring Layouts, Cross-Sectional Elevations Sheets and Temporary Signalization at each location as well.