By Jason Leach
Published December 18, 2012
Here's a fantastic quote from a planning document in Richmond, VA [PDF]:
Traffic volumes are of secondary or tertiary concern when designing a walkable thoroughfare system. The critical volume issue is the number of lanes required to accommodate peak hour traffic flow, usually estimated at 700-900 vehicles per hour (vph) per lane. Depending on local travel patterns (K and D factors), these peak hour volumes generally equate to 7,000-9,000 vehicles per lane per day. Consequently, a two-lane street is considered sufficient to support up to 14,000- 18,000 vehicles per day, again depending on local travel patterns and peaking characteristics.
Yes, their Traffic department published this document. Using the traffic volume in each 'lane per day' of 7,000-9,000, we would be in line to see Cannon, Queen, Wellington, Bay, Victoria all reduced to two lanes.
This would allow for bike lanes and tons of curb parking - which we will need if we're going to ever stop demolishing buildings for parking in this city.
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