VOLVO has become the first car manufacturer to offer a new Europe-wide traffic information service combined with a satellite navigation system. The optional extra, called RTI, priced at about £2,500 and making its Motor Show debut, includes Radio Data System - Traffic Message Channel, a service which gives traffic information either in graphics or words.

RDS stereo systems are common on modern cars, showing the name of each channel being listened to and automatically broadcasting traffic information reports. The new system improves this by allowing for information only on specific routes to be given, along with graphics instead of only spoken information.

Volvo has combined this with an in-car navigation system, so drivers can see when they enter a route that it is congested and then plan an alternative journey. RDS-TSM information on congestion, accidents and other traffic problems comes from the AA, RAC and Highways Agency, which is pushing forward with the Government's white paper commitment to help drivers by providing them with more information.