<Ul> <Li> Regular blackspots, known as Areas of known low adhesion are published in the Sectional Appendix and form part of the drivers' Route Knowledge which they are examined on . </Li> <Li> Lineside signs showing the start and end of known regular low adhesion areas are provided at some locations . </Li> <Li> Drivers are required by the Rulebook, to report to the signaller immediately either, any low railhead adhesion at a location not published in the Sectional Appendix, or any exceptionally poor rail adhesion at locations which are published in the Sectional Appendix . </Li> <Li> After receiving a report of low adhesion conditions, the signaller will contact drivers of following trains by radio to warn them . If it is safe to do so, the signaller may tell a driver to carry out a controlled test stop . That driver will then stop the train using the brake force appropriate to normal conditions for the weather and conditions at that time of year, and report back to the signaller . </Li> </Ul> <Li> Regular blackspots, known as Areas of known low adhesion are published in the Sectional Appendix and form part of the drivers' Route Knowledge which they are examined on . </Li> <Li> Lineside signs showing the start and end of known regular low adhesion areas are provided at some locations . </Li> <Li> Drivers are required by the Rulebook, to report to the signaller immediately either, any low railhead adhesion at a location not published in the Sectional Appendix, or any exceptionally poor rail adhesion at locations which are published in the Sectional Appendix . </Li>

Why are leaves on train tracks a problem