A new group is calling on the government to investigate a new road between Upper Hutt and the Wairarapa - aiming to do away with the current accident-prone Remutaka Hill Road in favour of a safer toll road. 

The group has investigated four options and estimates a new route could halve the 33-minute journey between Featherston and Upper Hutt. 

The most expensive option would cost $1.4 billion and would involve building through a valley towards a 320m-high tunnel. 

The group's leader Simon Casey joined Nick Mills to discuss the idea. 

LISTEN ABOVE