scope:

This standard applies to the expansion or development of existing Adhesion Management Systems and any new Adhesion Management System which is retrofitted to existing assets or is installed as part of new asset introduction.

This standard mandates that a predictive Adhesion Management System shall be implemented before ATO is introduced on any open section of the LU network, to minimise the risk and impact of low adhesion incidents occurring. On lines on which ATO running at low brake rates (i.e. <= 0.5 m/s/s) has been agreed without a predictive Adhesion Management System, then a predictive Adhesion Management System shall be implemented, compliant with the requirements of this standard, before the ATO brake rate is increased above 0.5 m/s/s. 

This standard also mandates that an Adhesion Management System shall be implemented for any open section of the LU network which is normally driven manually. On such lines, the implementation of a predictive Adhesion Management System, as required on ATO lines, is not mandated but should be considered. 

The objective of adhesion management is the delivery of the required service performance: 

• Safely and reliably, with the minimum risk of adhesion induced incidents

• In accordance with the defined Operational Concept

• With the risk of sustaining asset damage minimised

• With the cost of the required mitigation measures reduced as far as practicable

• With the loss of trains for service and the consequential risk of extensive service disruption reduced as far as practicable 

Any Adhesion Management System is cross asset and cross discipline and involves the lineside vegetation, track, rolling stock and signalling/Automatic Train Control (ATC) assets. The requirements of this standard are applicable to all of these Asset areas. (See section 4.4 of this standard regarding ownership and accountabilities). 

The associated guidance document G0189 provides background information, an explanation of the various issues and includes suggested means of achieving the requirements defined in this standard.

Purpose

The purpose of this standard is to define the adhesion management requirements which shall be implemented for any open section of the LU network, both on lines where the trains are manually driven and those on which trains operate automatically (i.e. Automatic Train Operation (ATO)). 

This standard covers the requirements which are specific to adhesion management. Requirements which are in other standards have therefore not been duplicated in this document. 

The implementation of the defined adhesion management measures is required to minimise the likelihood of a "compromised adhesion induced" service incident when operating on the open sections of the LU network.