New Zealand Transport Agency (Waka Kotahi)

10123 - SH1 Bombay Interchange Signalisation (PW)

The scope of this project includes the signalisation of the two ramp terminal intersections
and the exit from the BP services area. Specifically, this includes the following controls:
Signalisation of the BP Services Exit
• Signal control of the 2 x eastbound through lanes
• Signal control of the 1 x westbound through lane
• Signal control of the right turn exit from the BP services area
• Stop control of the left turn exit from the BP services area
Signalisation of the Northbound SH1 offramp
• Signal control of the right turn movement
• Stop control of the left turn movement
Signalisation of the Northbound SH1 onramp
• Signal control of the eastbound through lane
• Signal control of the westbound through lane
• Signal control of the right turn to the onramp for traffic from the east
• Give way control of the left turn to the onramp for traffic from the west
Signalisation of the Northbound SH1 offramp
• Signal control of the eastbound through lane
• Signal control of the 2 x westbound through lanes
• Signal control of the right turn from the offramp
• Stop control of the left turn from the offramp
To accommodate the signalisation, the project scope includes the following:
• Demolition of existing raised islands
• Pavement widening and resurfacing
• Stormwater modifications to realign catchpits with modified kerblines
• Construction of new raised islands and kerbs
• Minor service relocations
• Installation of ducting, loops and signal pits
• Line marking

Department/Business Unit: NZ Transport Agency - Highways and Network Operations