In today's winter 2009 edition of the Center City District newsletter the Center City Digest President Paul Levy unveiled a proposal to add physically separated bike lanes or cycletracks onto West Market Street and John F Kennedy Boulevard.
Image - Center City Digest Newsletter
The cross-section here is only a concept and design details are not complete, but it appears that on the existing one way portion of the streets (20th to 15th on Market and 16th to 20th on JFK) a left side bike lane would added. It would be physically separated by a six foot wide island with mountable curbs and planters or landscaping. The rest of the street layout would include a parking/left turn lane, three 10' travel lanes and a 10' parking lane on the right hand side. This design is similar to New York City's 9th Avenue bike lane.
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