TfL is now trialling the equipment on two buses, and the City of London Corporation will test it on its rubbish trucks.
Bassam Mahfouz, Ealing council's cabinet member for transport, said: "We are in discussions with TfL and if their own independent results support these so far, we are keen to look at further roll-out of this system across our fleet."
The photo shows Bassam Mahfouz cycling in the lorry's danger zone to demonstrate the system.
Ealing Council report on the results of the trial
BBC TV news report at the start of the trial