Abstract
The Danish Road Directorate has developed a new type of variable message sign (VMS) to be used at minor roadworks on the motorways. The new sign iscalled a swap sign, as it can swap between two positions active and inactive. Prior to a roadwork the signs will be mounted in the inactive state. Not until the roadwork starts the signs will be activated. The road users will experience a high credibility road marking which reflects the current situation, and the road workers will have an easily operated road marking system, which will give more time for the actual roadwork.