In a bid to increase bicycling in Philadelphia, the city plans to designate one lane along two major streets - Spruce and Pine - for bikes, leaving the other lane for all vehicular traffic.

City workers will paint new lines along both streets, from river to river, officials said, with the pilot project beginning around Labor Day.

Philadelphia currently has 32 miles of multi-use trails (no cars), and 205 miles of bicycle lanes - but only four miles of dedicated lanes in Center City.

The League of American Bicyclists, an advocacy group, recently ranked Philadelphia in the fourth tier of bicycle-friendly communities - well below Boulder, Seattle, and San Francisco but on a par with New York and Albuquerque.

Contact staff writer Sandy Bauers at 215-854-5147 or sbauers@phillynews.com.