Supply of warning systems on level crossings that are not currently controlled crossings.
As part of Network Rail (NR) proactive risk reduction at Level crossings the following outlines the high level product requirements for Level Crossing warning systems to be installed on NR infrastructure for the reduction of derailment risk due to collision with vehicles and / or reduction of risk of pedestrian fatality or injury at the following types of crossings:
Footpath crossings.
Bridleway crossings.
User worked crossings.
These are specified in Network Rail standard No NR/L2/SIG/11201.
Controlled crossing that are not included in this tender are defined as a level crossing of the following types in operation on Network Rail infrastructure:
Manually Controlled Barriers (all types) (MCB).
Automatic Half Barriers (AHB).
Automatic open crossings locally monitored (AOCL).
Automatic open crossings locally monitored + barriers (AOCL+B).
Automatic barrier crossings locally monitored (ABCL).
Network Rail will reserve the right to use tendered solutions for other types of crossings across the network.
Network Rail has approximately 4000 of these crossings. The number of crossings is very uncertain at the present time and will depend upon the tendered solution(s).
A product is required to be installed at existing level crossings that meets the following General Requirements:
The proposed solution(s) shall not require any new (to UK) railway operating principles, but can draw on the operational principles which apply at existing NR crossings (as described in NR/L2/SIG / 11201) and are to be suitable for use at all or any existing UK Crossing.
The developed solution:
Shall not interfere with existing signalling and radio systems.
Shall be installed with minimal change to the existing infrastructure.
Shall not rely on signaller intervention in the management and control of the level crossings.
Shall provide crossing information direct to the crossing user.
Shall make minimal connections (if any) to the existing signalling system.
Shall minimise the amount of line side equipment, external power supplies and avoid where possible metal cored cabling which extends anywhere beyond the immediate vicinity of the level crossing.
Shall be factory assembled, pre-tested with plug and play installed consistent with the principles of the modular concept.
Shall be designed in such a way as to discourage high risk behaviours, trespass and the violation of safe practice by users of level crossings.
Shall have Routine maintenance reduced to the minimum.
Shall ideally include affordable self-diagnostic remote monitoring capability.
Shall be capable of, where no existing power supply is available at a site, sustainable self-powered system shall be provided, this is particularly for application in rural locations.
May have On Call or user detected operation as an option on a self powered system.
Shall minimise the dependency on telecoms services required for the management and operation of level crossings.
Shall comprise of a minimum number of standard parts in modular configuration to aid transportation and maintenance activities.
Shall not require alterations to the existing crossing road surfaces or approaches.
Shall be of suitable robust construction for the railway environment.
The product shall have an appropriately high level of safety integrity (at least SIL 1), availability, reliability and simplicity in use for the general public.