The Anonymous Widower

ATO Stop and Safe Location On High Speed Two Classic-Compatible Trains

This document on the Government web site is the Train Technical Specification for High Speed Two trains.

There is a Section 8.6.2, which is entitled ATO Stop and Safe Location

This is said.

ATO Stop is an additional function compared to the ATO over ETCS SRS. The purpose of
this function is to enable the Train Captain to command the Train to stop at the next Safe
Location. A Safe Location is a pre-defined location on the HS2 Network where Trains can
wait safely, and evacuation can be carried out if necessary. If it is not necessary to make an
emergency brake application, this enables more control of where Trains make un-planned

Perhaps all vehicles on motorways need to be fitted with a similar system.

August 26, 2021 - Posted by | Transport/Travel | , ,


  1. ATO Stop adapted for road use. I suspect that accident/emergency cases occur far more often on the road compared to rail but its application to road might counteract driver’s panic and certainly could make a valuable contribution to safety on those stupidly named Smart Motorways.

    Comment by fammorris | August 26, 2021 | Reply

  2. A modern take on relief lines, aka a slow line. How much extra land and emergency service capacity would these planned activities need if actioned? Perhaps all high speed lines need to be four tracks to allow rescue trains to arrive to evacuate passengers, or get a Breakdown Train alongside.

    Comment by jagracer | August 26, 2021 | Reply

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