Work on the Tinwald corridor improvements project is “almost finished” but the lights won’t be switched on until April.

The main aspect of the project is installing the new traffic signals at the intersection of State Highway 1/Lagmhor Road/Agnes Street intersection.

A NZ Transport Agency spokesperson said everything is in place, except the “brain”.

“The final piece of work is to install the LOC box which is in essence, the brain of the level crossing,” the spokesperson said.

“While a temporary solution is currently in place, which is allowing the level crossing to operate safely, this essential component is responsible for coordinating the barrier arms with the pedestrian gates and traffic lights.”

KiwiRail expects the programming, installation, and testing of the LOC box to be completed by early April due to the delayed arrival of components from overseas.

For the next few weeks, the contractors will be finishing up road works on Melcombe Street and at the viaduct.

The work includes installing a pedestrian crossing, new footpath, and completing pavement improvements, including the road-narrowing bulges.

Road improvements on Graham Street, at the intersection with McMurdo Street, are expected to be completed in early March.