Central Reserve Advanced Warning Lighting
Making motorways safer.
A patented innovative intelligent transportation system (ITS) controlled by an equally innovative advanced software system– the Central Reserve Advanced Warning Lighting (CRAWL).
CRAWL fuses together multiple ITS systems to monitor all lanes in both directions alerting operators immediately upon detection of a range of incident types including stationary or slow-moving traffic, obstructions, wrong way vehicles. CRAWL also takes automated data from a range of weather information systems located on or near the Motorway. Upon detection of a traffic incident or the detection of an upcoming weather event the intelligent software will automatically activate the CRAWL roadside devices triggering the LED warning lights and VMS signs mounted on the central reserve structure.
What CRAWL does
An automated decision system, capable of detecting issues and provides advance relevant comms to drivers of network incidents ahead, work zones ahead and inclement weather surface conditions. CRAWL directs optimal and safe road user behaviour. Levels of system autonomy are implemented to suit the Client’s requirements/preferences.
The list below outlines the current set of use cases that CRAWL can provide. There are others that can be added to the system with further use cases developed to suit a clients requirements.
Unlimited pictogram library available
Crawl Technology
The system comprises patented Bi-directional CRAWL Saddle and CRAWL Variable Message Sign (VMS) Technology placed along the central reserve and the verge at frequent intervals, typically a Saddle and VMS are placed at 500m centres with Saddles placed at 100m centres between the Saddle and VMS in the central reserve.
CRAWL Advantages
CRAWL is a proactive, real time, multi-use safety system that detects danger, reacts immediately to accidents and sets processes in motion that protect both motorway users and emergency services. Creating a direct connection between control centres, emergency infrastructures and drivers.
Protection to 1st Responders, 2nd Responders, Road Maintenance Staff and the Road User, reducing Shockwave Effect and risk of Secondary Incidents.
Accurate identification/confirmation of incident location, giving immediate live feed and control of the incident location to the Network Coordinator.
Integrated Turn-Key ITS System, with varying levels of interaction and autonomy, from fully automated to solely Operator managed, depending on Road Authority’s needs.
Incident reporting, roadworks reporting, live weather, hail detection warnings both local to the event and upstream of the location.
The CRAWL network offers Point to Point Speed Detection, Variable speed limits for incidents, road works as well as for safety reasons.
Offers cost efficient and complete network coverage. Individual unit operates in both directions with direction relevant messaging.
Road users, the environment and the economy benefit from improved running and open times to the Road Network: reducing delays, congestion, emissions, improving journey time reliability.
Reduced primary and secondary incidents, lowering vehicle damage and pollution from leaking fluids, oils and fuels. Environmental impact further reduced with less spills to clear and dispose of.
By reducing RTA’s, the level of asset damage is scaled-down and therefore the subsequent costs of network repairs and maintenance are lowered.
A ready made network for deployment of future systems to further enhance road safety and road user experience e.g. for outstations for co-location of other systems such as C-ITS and WIM.
CRAWL has patents and registered designs granted and pending in various jurisdictions including Ireland, the EU and the UK.