When it was time to update a key stretch of England's M6 highway, the Highways Agency and contractors had a unique task. The plan was to turn a service lane into a regular traffic lane, requiring that work be completed on a tight schedule in specific areas, and only at certain times. According to a press release, the job was completed using technology from Wirtgen. According to the release:
This unique project is the first of its kind in the United Kingdom ... Following an intensive planning phase, project manager Mark Gladwell decided on a sophisticated timetable and logistics schedule covering every last detail. During the day, temporary steel barriers separate the service lane to be converted from the main traffic stream on the adjacent traffic lane. At night, when traffic is lighter, lane 1 and part of lane 2 are closed to traffic to provide an access route for the construction vehicles. "Such a tricky project can only be carried out with the aid of extremely sophisticated machine technology," says Mark Gladwell. It was decided to use a Wirtgen SP 25i together with a Wirtgen ISF 25i which had been developed on the basis of the SP 25i in order to meet the project's special requirements.