Transportation Research Thesaurus (TRT)

  1. Cab signals
  2. Cable cars
  3. Cable railroads
  4. Cable stayed bridges
  5. Cable systems
  6. Cables
  7. Cabooses
  8. Cabotage
  9. Cabs (Taxicabs) USE Taxicabs
  10. Cabs (Vehicle compartments)
  11. Cadavers
  12. Cadmium
  13. Caffeine
  14. Caissons
  15. Calcareous soils
  16. Calcined aggregates
  17. Calcines
  18. Calcites
  19. Calcium
  20. Calcium carbonate
  21. Calcium chloride
  22. Calcium chloride
  23. Calcium compounds
  24. Calcium hydroxide
  25. Calcium inorganic compounds
  26. Calcium magnesium acetate
  27. Calcium magnesium acetate
  28. Calcium nitrite
  29. Calcium oxide
  30. Calcium silicate
  31. Calcium sulfates
  32. Calcretes
  33. Calculating machines USE Calculators
  34. Calculation
  35. Calculators
  36. Calculus
  37. Calculus (Mathematics)
  38. Calculus of variations
  39. Calibrating USE Calibration
  40. Calibration
  41. California bearing ratio
  42. Call boxes (Driver aid devices)
  43. Calorimeters
  44. Camber USE Curvature
  45. Camcorders USE Video cameras
  46. Cameras
  47. Campaigns
  48. Camper trucks
  49. Camping
  50. Campus parking
  51. Campus transportation
  52. Campuses
  53. Cams
  54. Camshafts
  55. Canal linings
  56. Canal lock operations
  57. Canal operations
  58. Canal transit
  59. Canals
  60. Canals and waterways
  61. Cancer
  62. Cantilever bridges
  63. Cantilevers
  64. Canyons
  65. Capacitance
  66. Capacitors
  67. Capacity restraint
  68. Capes
  69. Capillaries
  70. Capillarity
  71. Capillary action USE Capillarity
  72. Capillary water
  73. Capital
  74. Capital
  75. Capital costs
  76. Capital expenditures
  77. Capital investments
  78. Capital productivity
  79. Capital requirements USE Capital
  80. Capsizing
  81. Capsule pipelines
  82. Captive riders
  83. Car clearances (Railroads)
  84. Car couplers USE Couplers
  85. Car distribution (Railroads)
  86. Car dumpers
  87. Car following
  88. Car interchange (Railroads)
  89. Car location (Railroads)
  90. Car operations (Railroads)
  91. Car ownership (Railroads)
  92. Car parks USE Parking facilities
  93. Car pooling (Railroads)
  94. Car rentals (Railroads)
  95. Car service rules
  96. Car sharing
  97. Car shops (Railroads)
  98. Car shortages (Railroads)
  99. Car supply (Railroads)
  100. Car tracing (Railroads)
  101. Car truck accidents USE Multiple vehicle accidents
  102. Car trucks (Railroads)
  103. Car utilization (Railroads)
  104. Car wheels (Railroads)
  105. Caravans (Travel trailers) USE Travel trailers
  106. Carbamide USE Urea
  107. Carbene
  108. Carbides
  109. Carbinols
  110. Carbohydrates
  111. Carbolic acid USE Phenol
  112. Carbon
  113. Carbon black
  114. Carbon dioxide
  115. Carbon fibers
  116. Carbon inorganic compounds
  117. Carbon monoxide
  118. Carbon steel
  119. Carbon taxes
  120. Carbonate rocks
  121. Carbonates
  122. Carbonation
  123. Carbonization
  124. Carbonmonoxyhemoglobin USE Blood carbon monoxide levels
  125. Carboxyhemoglobin USE Blood carbon monoxide levels
  126. Carbuilders
  127. Carburetion
  128. Carburetors
  129. Carburettors USE Carburetors
  130. Carcinogens
  131. Cardan shafts
  132. Cardiac disorder
  133. Cardiovascular diseases
  134. Cardiovascular system
  135. Cargo aircraft
  136. Cargo compartments
  137. Cargo documentation USE Freight documents
  138. Cargo facilities
  139. Cargo handling
  140. Cargo handling equipment
  141. Cargo handling personnel
  142. Cargo holds USE Holds (Vehicles)
  143. Cargo insurance
  144. Cargo preference
  145. Cargo security USE Freight security
  146. Cargo ships
  147. Cargo submarines
  148. Cargo vehicles USE Trucks
  149. Carjacking
  150. Carloadings
  151. Carnivores
  152. Carpool lanes USE High occupancy vehicle lanes
  153. Carpool lanes USE High occupancy vehicle lanes
  154. Carpools
  155. Carriageway markings USE Road markings
  156. Carriageways USE Traffic lanes
  157. Carrier selection
  158. Carrier sense multiple access
  159. Carriers
  160. Carriers by mode
  161. Carriers by type of service
  162. Cartography
  163. Case based reasoning
  164. Case law USE Legal documents
  165. Case studies
  166. Cash flow
  167. Casings
  168. Casinos
  169. Casks
  170. Cast in place concrete
  171. Cast in place structures
  172. Cast in situ concrete USE Cast in place concrete
  173. Cast iron
  174. Cast steel
  175. Casting
  176. Casual carpooling
  177. Casualties
  178. Cataloging
  179. Catalogs
  180. Catalysis
  181. Catalyst poisoning
  182. Catalysts
  183. Catalytic converters
  184. Catamarans
  185. Catapults
  186. Catastrophe theory
  187. Catch basins
  188. Catchment areas USE Drainage basins
  189. Catenaries (Railroads)
  190. Cathode ray tubes
  191. Cathodes
  192. Cathodic protection
  193. Cation exchange
  194. Cationic emulsified asphalt
  195. Cations
  196. Cats
  197. Caucasians USE Whites
  198. Causeways
  199. Caverns
  200. Cavitation (Mechanics)