Traffic Signals

Traffic Signals Overview

Effective traffic signal operation is vital for public safety and for keeping Portsmouth moving efficiently. Colas’ dedicated Traffic Signals Team brings over 96 years of combined industry experience, delivering expert management and maintenance of the city’s signalised junctions and crossings.

Traffic Signals Maintenance

We provide both reactive and planned maintenance across Portsmouth’s traffic signals network. Our services include prompt responses to reported faults such as signals operating “all out”, lamp failures, road traffic collision damage, and other physical defects. This is supported by a structured maintenance programme of routine inspections to ensure reliable, consistent performance throughout the year.
Our engineers are available on call outside normal working hours, 365 days a year, to ensure network safety and continuity.

Traffic Signal Upgrades

The team delivers full site upgrades utilising the latest ExtraLow Voltage (ELV) controller technology and energyefficient LED systems. This includes modernising signal heads, pushbutton units, and associated street furniture, improving reliability, sustainability, and user experience across the network.