Buses are the most common form of urbantransit but, in the developing world, are often seen asinefficient and polluting. It is well known that buses thatare properly tuned and adjusted tend to be cleaner, saferand consume less fuel than poorly maintained buses. Fuelcost is a relatively large fraction of total cost especiallywhen labor and bus costs are low, as in many developingcountries. Hence, reducing fuel use through targetedmaintenance of fuel inefficient buses can reduce significantexpenditures especially in developing countries, freeing upresources for other improved city services. In addition, ifcity buses do not receive periodic maintenance that isadequate in quality and quantity, their emissions, bothlocal and global, will suffer. In an effort to catalyzesolutions for urban transport, the World Bank Group focusedon development of a global Knowledge Product in the form ofa 'Guidance Note' (GN) on bus maintenanceprocedures. The GN is directed towards city transit managersand their technical staff in developing countries to enhancethe energy efficiency of city transit. The objective of thiswork effort is to prepare a Guidance Note (GN) onmaintenance best practices that is a practical and usefultool to guide the implementation of a program that willenhance the fuel efficiency of buses. To address thisobjective, taking stock of existing good programs andapproaches and interacting with relevant city fleetoperators is critical.
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