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Lisa Martellaro-Palmer Transportation Engineering Associate City of Los Angeles, Department of Transportation (LADOT). Old Version: Accessible Pedestrian Signals (APS). New Version: Accessible Pedestrian Signals (APS). The 2012 MUTCD. The 2012 MUTCD. Audible Tones. Audible Tones.
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Lisa Martellaro-Palmer Transportation Engineering Associate City of Los Angeles, Department of Transportation (LADOT)