Division 1.1 Road signs shall be used to designate the following safety facilities in tunnels:X1

lay-bys,

emergency exits: the same sign shall be used for all kinds of emergency exits,

escape routes: the two nearest emergency exits shall be signed on the sidewalls at distances of no more than 25 metres, at a height of 1,0 to 1,5 metres above escape route level, with an indication of the distances to the exits,

emergency stations: signs to indicate the presence of emergency phones and fire extinguishers.