ISO/TS 15624:2001

Transport information and control systems — Traffic Impediment Warning Systems (TIWS) — System requirements ISO/TS 15624:2001

Publication date:   Jan 18, 2001

Scope

This Technical Specification specifies system requirements for Traffic Impediment Warning Systems (TIWS). The
purposes of the warning system are that information collected by the infrastructure is automatically and quickly
provided to vehicles and reported to the traffic system operator, so vehicles can avoid secondary accidents. A
major function of the system is to save lives by speedier rescue activities and, a quicker clearing up of accidentcaused
congestion. This Technical Specification focuses on closed circuit television (CCTV) cameras as the
sensors, to detect traffic impediments using image processing and variable message signs as the communication
method to provide information to drivers.