This project will improve safety at Bombay Interchange by installing traffic lights on the southbound off-ramp, the northbound off and on-ramp and the nearby exit of the Bombay service centre on Mill Road.
The installation of traffic lights at Bombay Interchange and the Bombay service centre exit got underway in September 2024 and is expected to be completed in late February 2025.
Works will be staged to minimise disruption, with the activities likely to have the greatest impact on traffic flows being undertaken at night.
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Following early engagement with the Franklin Local Board on the SH1 Papakura to Bombay project, the NZ Transport Agency Waka Kotahi (NZTA) investigated concerns raised over safety, congestion and access at Bombay Interchange.
Investigations and modelling by NZTA determined that the most appropriate short-term solution to improve safety and reduce congestion is to install traffic lights at the Bombay Interchange and the adjacent BP Bombay service centre exit on Mill Road.
The future plans for upgrading Bombay Interchange are part of Stage 2 of the Papakura to Bombay project. View the design plans:
Design plans for Stage 2 of the wider Papakura to Bombay project [PDF, 13 MB]
The earlier investigations and work undertaken on this project are summarised below.