In governmental plans, the A15 and A18 together were meant to be one long motorway from the Europoort harbor near Rotterdam towards the town of Varsseveld in the east of the country.

In 2018, the Dutch government announced plans to extend the A15 by 12 kilometres (7.5 mi) from the A325 south of Arnhem to the A12 northwest of Zevenaar as a toll motorway, which will provide a connection onward to the A18; the A12 will also be widened from Westervoort to the Oud-Dijk interchange with the A18, and a new Zevenaar-East exit will be built to replace the existing Zevenaar exit.

However, it has most characteristics of a motorway, such as a central barrier and a hard shoulder until it crosses the Coloradoweg on the Maasvlakte.

Together with the Betuweroute, which runs parallel on several stretches, the A15 is a main transport corridor from the Port of Rotterdam to the east.

This road passes the towns Harreveld, Lichtenvoorde, Groenlo, and Eibergen on its way to the city Enschede.