North Blvd. & Cass Street

Intersection Traffic Signal Design


The City of Tampa – Department of Public Works


Dr. Collins was responsible for the design plans of a full traffic signal replacement located at the intersection of North Boulevard & Cass Street in the City of Tampa, Florida. The traffic signal design was prepared in accordance with both the City of Tampa design standards and the Florida Department of Transportation (FDOT) design standards. This traffic signal replacement project is part of the City's ongoing effort to upgrade their existing intersections which have been using outdated traffic signal equipment. This particular intersection required additional effort due to its immediate proximity to an active CSX railroad line and limited public right-of-way. Video detection for all approaches and railroad preemption was provided which helps provide the most efficient traffic signal timing possible based on real-time traffic conditions.


  • Collection of intersection field inventory data
  • Traffic signal design and plan preparations
  • Preparation of pavement markings plan
  • Design placement of new signal support poles
  • Communication line upgrades
  • Design of signal using railroad preemption
  • Design placement of junction boxes and communication cables which avoid the active CSX railroad lines
  • Design placement of video detection equipment and video detection areas
  • Design placement of new pedestrian ramps, new crosswalks, and new refuge islands
  • ADA compliance review which resulted with retrofitting existing pedestrian ramps compliant with ADA regulations
  • Design placement of pedestrian crossing count-down equipment, and pedestrian crossing push button locations/risers compliant with ADA regulations