The US state of Louisiana is planning a $300m passenger rail service between Baton Rouge and New Orleans.

Authorities believe that the service could attract around 500,000 passengers each year, substantially improving transport and reducing congestion in the cities.

The proposed rail service will stop at Interstate 10 near Acadian Thruway, Mall of Louisiana, Gonzales, LaPlace, Louis Armstrong New Orleans International Airport and Amtrak station near the Superdome between the two cities, with four to eight daily round trips.

The rail service could also become part of a high-speed rail plan proposed for the Gulf Coast states, which will run trains at speeds of up to 110mph.

Although a similar service had been proposed in the past, the project was denied government approval mostly due to a lack of funding.

The state plans a request for a federal government grant to build the rail service.

The plan will be submitted to the state Department of Transportation and Development for approval shortly.