Table of Contents

11.3.1 General

Entry ramps may have one or two lanes on the ramp and one or two lanes at the entry nose to the major road.

At all interchanges on high-speed roads (operating speed > 80 km/h) it is good practice to provide an auxiliary lane to enable entering traffic to travel parallel to and at the same operating speed as the through carriageway whilst searching for a gap in the adjacent lane. At interchanges on low‑speed freeways that have relatively low traffic volumes, gaps are readily available for entering traffic and a simple merge may be provided beyond the nose.