Signal Design Services

The preparation of Traffic Impact Studies and Traffic Signal Designs is one of our recognized specialties. We perform 60-80 traffic signal designs per year. Our design experience includes the development of signal timing plans, emergency vehicle pre-emption, railroad pre-emption, pedestrian actuation and safety needs, inductive loop and video image vehicle detection, and various interconnect systems including time based, hard wired, fiber optic, and spread spectrum radio.

We have provided these services for projects ranging in size from small convenience stores to 1600-acre multi-use developments. Included in the preparation of traffic impact studies have been intersection capacity analyses, coordinated signal system analysis, signal warrant studies, bicycle and pedestrian analysis, roundabout analyses, accident analysis, and gap analyses. RKA has prepared traffic signal designs for new signals as well as signal upgrades involving numerous types of equipment and geometric configurations.

We are experienced in developing timing plans for isolated intersections as well as urban pre-timed grid networks of signals and signal systems promoting coordinated arterial traffic flow. We also assist municipalities in developing traffic signal timing, phasing and coordination plans using computer software such as SYNCHRO and TRANSYT 7f.

Signal Design

• Isolated Traffic Signal Design
• Coordinated Traffic Signal Design
• Cable Routing Plans
• Signal Timing Implementation
• Pavement Marking Plans
• Intersection Improvement Design
• Construction Inspection/Administration
• "Red Light" Enforcement Plans
• Electrical Detail Plans