A Hawera woman had jumped out of her car to remove metal frames strewn across State Highway 3, Normanby, when she was struck and killed by an oncoming vehicle.
The Saturday night crash has continued Taranaki's horror run of pedestrians killed on roads, with six now dead for the year.
Detective Guy Jackson said it appeared the 57-year-old had stopped her car to remove the barriers blocking the road when she was hit by the northbound car about 11.50pm.
She died at the scene.
Jackson said there was heavy rain at the time of the crash and "lighting conditions weren't the best".
"At this stage, there is no indication that the driver who struck the victim was doing anything wrong," he said.
The barriers were being used to warn pedestrians about holes dug near the footpath.
"Police want to hear from any witnesses who either stopped at the scene at the time of the crash or who may have seen the barriers placed on the road," Jackson said.
"Police are urging whoever was involved in placing the barriers in the road to come forward.
"Hopefully their conscience will get the better of them and they will come forward."
Police will not release the woman's name until next of kin have been notified, but she is the sixth pedestrian to be killed on Taranaki roads this year.
Those with information are asked to call Jackson on 06 215 5263 or 021 191 5224.
- Taranaki Daily News