503 | First Ave. | Welland - Niagara Region Transit
503 Route: Schedules, Stops & Maps - Himlabacken (Updated)
RTA Routes – Go Howard
Red Arrow Route 503
Proposed Service Improvement: 503/E – Welcome to RTA
Coast Mountain Bus Company route 503 'Fraser Highway Express' - CPTDB Wiki
503 (EXPRESS BUS Brighton Center – Copley Square via Oak Square and Mass Turnpike) | Miles in Transit
The South Fraser Blog: Fraser Highway Express – Big Changes to Transit Start September 3rd
King East / Sumach track and switch replacement project: Construction continues, TTC detouring cars, until "late September" - Transit Toronto - Weblog
503 Route: Schedules, Stops & Maps - Autogara STP -> Electrica -> Sard -> Craiva -> Tibru (Updated)
Red Arrow Route 503
503 Kingston Rd - Wikipedia
Toronto Transit Commission route 503 'Kingston Rd' - CPTDB Wiki
EBS 503 bus - Netherlands
503 Bus Route - WHEELS - SF Bay Transit
503 Route: Schedules, Stops & Maps - Troisdorf Spich Grundschule→Troisdorf Akazienweg (Updated)
503 Route: Schedules, Stops & Maps - Davies Transit Centre Bay K→Millbourne Road E & 38 Avenue (Updated)
File:BMTA 1-45086 Route 503.jpg - Wikimedia Commons
CTTransit New Britain 503 bus - Connecticut
Changes to Kingston Road, Dundas, Carlton and St. Clair Ave. W. Services (Revised) | Steve Munro
Streetcar line 503 Kingston Road map - Map of streetcar line 503 Kingston Road (Canada)
Route 503: Aldergrove / Surrey Central Station — TransitDB
503 Route: Schedules, Stops & Maps - Allbrook (Updated)
RTA of Central Maryland 503 bus - Baltimore
Route 503: Aldergrove / Surrey Central Station — TransitDB
