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75 Pennsylvania Consolidated Statutes § 3505 (2025) - Riding on roadways and pedalcycle paths :: ...
https://law.justia.com/codes/pennsylvania/title-75/chapter-35/section-3505/
"(b) Operation on shoulder.--A pedalcycle may be operated on the shoulder of a highway and shall be operated in the same direction as required of vehicles operated on the roadway. All turns shall be made in accordance with section 3331 (relating to required position and method of turning). "
曲がる時はセクション3331（クルマで交差点を曲がるとき）に従えって事は、つまり少なくともペンシルベニア州で自転車で左折するときは左折レーンを走れってことかも？＞＜