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Portland Bureau of Transportation

We keep Portland moving

Phone: 503-823-5185

Fax: 503-823-7576

1120 SW Fifth Ave, Suite 800, Portland, OR 97204

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Vehicle Exclusion Lanes

Description:
 
Exclusion lanes are lanes for a particular class of vehicle, excluding all others. The most common examples are the bus-only, bicycle and car pool/diamond lanes.
 
Purpose:
 
Exclusion lanes are intended to change traffic patterns.
 
Effectiveness:
 
The effectiveness of exclusion lanes varies with the location of their placement. Their effectiveness is greatest when there are clear alternatives that are easier to use than violating the lane restriction.
 
Cost:
 
Exclusion lanes cost approximately $2,000-10,000 each, for an entrance area.
 
Parking Impacts:
 
Some parking may be lost to reinforce the restrictions.
 
Transit Service Impacts:
 
Exclusion lanes may impede transit service or scheduling, though they are often constructed for the benefit of transit vehicles.
 
Emergency Services Impacts:
 
Emergency response vehicles are not generally impeded by vehicle exclusion lanes. The Portland Fire Bureau reviews all Exclusion lanes proposed on their primary response routes.
 
Noise Impacts:
 
Not known at this time.
 
Other Considerations:
 
Traffic volumes typically decrease after exclusion lanes are constructed.
 
Examples In Portland:
 
SW Vermont at Taylors Ferry Road "Bus Only" entry   
Bicycle Only Lanes, Clinton at 39th    Picture

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