Buses and cycles often compete for the same space near the curb. On streets without cycle infrastructure, curbside bus lanes frequently attract cycle traffic, prompting some cities to permit cycles in bus lanes. Shared bus-cycle lanes can safely
accommodate both modes, at low speeds with moderate bus headways, where buses are discouraged from passing. Cycles are permitted to pass buses only at stops. Bus lanes should be no more than 4 m wide. While they are not part of a high-comfort
cycle network, bus-cycle lanes can be preferable to mixed traffic. Where space allows, a dedicated facility for cyclists
should be provided.