Research problem statements operation, safety and maintenance of transportation facilities.

Ngā taipitopito rārangi puna kōrero
Kaituhi rangatōpū:	National Research Council (U.S.). Transportation Research Board
Hōputu:	Pukapuka
Reo:	Ingarihi
I whakaputaina:	Washington, D.C. Transportation Research Board, National Research Council [1990]
Rangatū:	Transportation Research Circular Number 364
Ngā marau:	Highway engineering > Research. Buses > Maintenance and repair > Research. Road machinery > Maintenance and repair > Research. Pavements > Maintenance and repair > Research.