Buses and Trams Only road sign (R139) Type:Chromadek The No Abnormal Vehicles road

The No Abnormal Vehicles road sign (R233) is a regulatory prohibition sign used to indicate that abnormal vehicles

SABS Fire Telephone photoluminescent (glow in the dark) safety sign (F48)

or intersection design

especially in unfamiliar environments

Buses and Trams Only road sign (R139) Type:Chromadek The No Abnormal Vehicles roadThe Buses and Trams Only road sign (R139) is a regulatory command sign used to indicate that only buses and trams may proceed beyond the sign. Purpose and function This sign restricts access to designated routes or lanes to support public transport priority, improve travel reliability, and reduce congestion caused by mixed traffic. Typical applications Public transport corridors Urban centres with dedicated transit routes Approaches to stations and