It is important to consider the provision for cycling between intersections and the transition approaching a signalised intersection, and departing from it. In particular:
Deliberate space should be provided to allow for safe merging and turning manoeuvres between cyclists and motorists. Any tapers on cycle lanes at transitions to the left can be a minimum of 1:10. Where a cycle lane tapers to the right, the following equation should be used for determining the length of the offset:
Ld=V * Y / 2.16
Ld = Length of taper
V = 85th percentile speed of motorised traffic (km/h)
Y = lateral shift (m)
MOTSAM Part 2, Section 3.18 [PDF, 6 MB] provides appropriate transitions of cycle lane from midblock to intersection locations.
To discourage motorists from driving in cycle lanes at intersections, the combined width of the cycle lane and adjacent general traffic lane should not be greater than 4.8 m, otherwise general traffic may use the additional width to create to informal traffic lanes and obstruct the cycle lanes. Where the 4.8 m width is exceeded, the kerbside cycle lane should be physically separated from the adjacent general traffic lane, eg with flexi-posts.