Memorandum - NHTSA

VI-2
subject to the ADA requirements and will need to be equipped with lifts and only buses with 1 fts
are subject to the FMVSS requirements.
The APTA estimated that there were 60,250 transit buses in operation in 1989 and of these
approximately 11.4 percent (6,869) were remanufactured. Assuming that the annual
remanufactured bus sales are equal to the proportion of their in-use population (1 1.4 percent),
the agency estimates that 342 - 456 [.114 X (3000 to 4000)] of the transit buses sold annually I ire
remanufactured. The proportion of leased transit buses is unknown. The APTA also estimate,;
that in 1995, 92.6 percent of the new transit bus sales were lift-equipped.' The APTA statistic:s
exclude school buses and intercity buses. Therefore, for 1995 transit bus sales, NHTSA
estimates 2,778-3,704 [.926 X (3000 to 4000)] were lift-equipped. However, for purposes of
cost analysis, NHTSA assumes 100 percent will be lift-equipped in future years.
Paratransit Buses - The 1997 APTA Fact Book estimates that in 1995 in the US. there were
28,750 paratransit/ demand-response type vehicles in operation. The APTA estimates that the
ratio of paratransit vehicles to transit buses in operation was 28,75057,275 or .43.3 The agen;:y
assumes that annual paratransit vehicle sales are proportional to their in-use population, whicl
would be approximately 43 percent of annual transit bus sales. Thus, annual paratransit vehicle
sales are estimated to be 1,290-1,720 [.43 X (3,000 to 4000)] units per year.
' 1997 Transit Fact Book, American Public Transit Association, percent lift-equipped see page 82, pagc' 85
- Table 50, page 89 - Table 54, New Bus Market data.
' 1997 Transit Fact Book, APTA, Page 83, Table 46, Active Passenger Vehicles by Mode and discussic ns
with FTA staff.