Communications based train control with Ad-hoc networks

Abstract

Metro intelligent transport city systems should ensure a high train cadence and have increased safety in high traffic conditions. Current signaling systems CBTC can provide a safe minimum distance between two successive trains −50 m theoretically but practically 200 m due to delays in the transmission chain of processing and transmission of data, which includes the central server, interlocking equipments by local stations and adjacent systems. The new system aims to reduce the gap by using direct communication between successive trains so as to eliminate delays due to communication equipment exclusively at reserve and subsequently lock the route.