A trackside sign which marks the beginning of a speed restriction and
indicates the permissible speedThe maximum allowable safe speed over a section of line which applies to all trains when not operating at an EPS. Normally identified in the Sectional Appendix,... More. See also Temporary Speed RestrictionA speed restriction imposed for a short period that has been published in the Weekly Operating Notice. More
and Emergency Speed RestrictionA Temporary Speed Restriction not shown in the Weekly Operating Notice, or which is more restrictive than shown, or which applies at a time not shown. More.