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dispute seems to be about describing this as a Canadian invention, which is not substantiated in the text (maybe it was removed since 2014) |
Tags: Mobile edit Mobile web edit |
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===A2 and B2===
[[File:Parclo B2.svg|thumb|upright|B2 configuration for right-hand traffic, or A2 for left-hand traffic
Parclo A2 and B2 configurations contain four ramps. On each side of the freeway there is a loop ramp and a directional ramp. In parclo A2, the loop ramps serve as on-ramps and the directional ramps serve as off-ramps. In parclo B2 the roles are reversed. Both on- and off-ramps require controlled intersections at the arterial road (sometimes loop and directional ramps from the same side of the freeway will utilize the same intersection).
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