Buses are to run more frequently on the borough's most popular routes from the middle of next year.
The changes, to come into effect from summer 2009, mean people could wait up to 10 minutes less at a stop for their ride.
The amendments are as follows:
n 302 - additional peak hour journeys and earlier morning and later last buses
n H9/H10 - increase from 5 to 6 buses per hour (bph) Monday to Saturday and from 2 to 3 bph on Sunday
n H11 - increase from 2 to 3 bph in evenings from Monday to Saturday and all day Sunday
n H14 - increase from 6 to 7 bph from Monday to Saturday
n 114 - increase from 4 to 5 bph in evenings from Monday to Saturday and all to Sunday
n 140 - additional journeys from Harrow Weald from 3am onwards to Heathrow Airport
n 183 - increase from 5 to 6 bph from Monday to Saturday plus later last buses
n 340 - increase from 4 to 5 bph from Monday to Saturday
The changes were revealed by Richard Shirley of the Stakeholder Engagement Unit of TfL Buses - the division of Transport for London that sets routes and awards contracts to bus operators - at a meeting of the Harrow Public Transport Users' Association on Wednesday November 19.
Anthony Wood, chairman of the association, said: "Some of the improvements were requested by us but all improvements are very welcome.
"Other suggestions we have made are still the subject of discussions with TfL Buses."