Route 503 and School Service 768 Bus Stop Relocation Sun 15 Sep From Sunday 15 September, Route 503 and School Special 768 will undergo a minor service change due to a permanent bus stop relocation. The following stop will be permanently moved: 19704 (Winthrop Dr before Aitken Dr). The new stop location will be 95 metres towards Aitken Dr. For assistance or to plan your journey please call the Transperth InfoLine on 13 62 13 (TIS: 13 14 50). Hearing or speech impaired? Call via NRS 133 677 and ask for 13 62 13.