The mayor of Conception Bay South says a fatal crash on a bypass road Tuesday is more proof that the Newfoundland and Labrador government needs to improve highway access to the town.

A woman who was a passenger in a car died in an accident on the Manuels access road on Tuesday afternoon when the westbound vehicle lost control, crossed the median and wound up in an eastbound lane.

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Conception Bay South Mayor Woodrow French wants new action on easing congestion on highway access to his town. (CBC )

Mayor Woodrow French said there have been multiple accidents on various parts of the C.B.S. bypass road lately, and at least two recent ones have claimed lives.

"Even in that section that's four lanes, if you go out in the morning, it's bumper to bumper," said French, who worries that traffic volumes on the highway have become too high.

"We're the second largest community in the province, approximately 27,000 people, and that's putting more and more pressure on our highways."

The town has an unusual shape, in that most of the residents live on a stretch that hugs the shore of Conception Bay. The town was formed when nine former towns amalgamated 40 years ago. Bypass roads provide the main connections for commuters heading to St. John's and other neighbouring municipalities.

While the cause of Tuesday's crash is not yet clear, French said it is time to take action.

"I'm certainly going to have to approach the provincial government about setting up some sort of advisory council or a committee with regard to investigating how we can get the traffic in and out of C.B.S., without jeopardizing the safety of the people that are using the highways," he said.

The man who was driving the car in Tuesday's crash was treated in hospital, although police said his life was not at stake.