Meanwhile , on April 1989 London Buses was divided into 11 separate business units , two of which were Leaside Buses and South London Transport .
In February 1987 , Grey - Green commenced operating bus routes in north and east London to London Regional Transport .
On April 1989 London Buses was divided into 11 separate business units , two of which were Leaside Buses and South London Transport .
In February 1987 , Grey - Green commenced operating bus routes in north and east London to London Regional Transport .