Bus route 22 was introduced to provide passengers who were trying to access the Gyle area from across the City and Mid/East Lothian quicker journey times. The 22 was routed via the West Approach Road, the first time this road had been used by a frequent Cross-City bus service. The route used the first batch of Dennis Dart single deckers to be bought by Lothian Buses. Route 22 operated every 10-mins during the day, seven days a week – a first for Edinburgh. It was also one of the first Lothian Buses routes to be operated by a fleet of fully low floor buses.