Buses Only road sign (R121) Wet concrete safety sign Yield to traffic circulating within

Yield to traffic circulating within the traffic circle

and maintenance bays where hazardous substances are used or stored

Temporary Motor Cars Only road sign (TR117)

or where sight distance is limited

It helps prevent serious injury through exposure

Buses Only road sign (R121) Wet concrete safety sign Yield to traffic circulating withinThe Buses Only road sign (R121) is a regulatory command sign used to indicate that only buses are permitted to proceed beyond the sign or use the marked lane or route. Purpose and function This sign reserves access for bus operations, improving public transport flow and reducing delays caused by mixed traffic. It also supports safer passenger movement around bus corridors and interchanges. Typical applications Dedicated bus lanes and bus priority