Rijkswaterstaat has initiated a number of projects to reduce this risk, and make the work of road inspectors safer. The Flister project is an example of this and uses transmitters installed on road inspector's vehicles. When a road inspector stops at a hazardous location they use the transmitter to send a signal to a central station. This then uses a popular app to send a warning to passing vehicles.
Rijkswaterstaat recently decided to expand the scope of the Flister project by also using cooperative communications to warn road users about stationary road inspector's vehicles. Hence Flister and the Cooperative ITS Corridor project have joined forces.