Targeting vehicle owners and fleet managers: improving in-fleet vehicle maintenance. Measures to improve in -fleet vehicle maintenance by changing the behaviour of vehicle owners and fleet managers generally centre on the development of an inspection and maintenance (I and M) programme. These measures have taken on different forms in different jurisdictions (centralized or decentralized, public or private) and use different testing equipment, techniques and drive cycles. I and M can be supplemented or phased in through a programme of mobile enforcement. Finally, changes in the mechanisms of fleet-vehicle procurement and maintenance– specifically to abandon the sharp.
