Transportation Research Thesaurus (TRT)

  1. U turns
  2. U.S. customary system of units
  3. UHF USE Ultrahigh frequency
  4. Ultimate load design
  5. Ultimate loads USE Breaking loads
  6. Ultimate strength
  7. Ultrahigh frequency
  8. Ultralight aircraft
  9. Ultrasonic detectors
  10. Ultrasonic radiation
  11. Ultrasonic tests
  12. Ultrasonic waves
  13. Ultrasonics
  14. Ultraviolet light
  15. Ultraviolet radiation
  16. Ultraviolet rays USE Ultraviolet radiation
  17. Ultraviolet spectroscopy
  18. Unburned fuels
  19. Uncertainty
  20. Unchannelized intersections
  21. Unconsolidated soils
  22. Uncontrolled intersections USE Unsignalized intersections
  23. Uncontrolled junctions USE Unsignalized intersections
  24. Unconventional track
  25. Under developed countries USE Developing countries
  26. Underbodies
  27. Undercarriages
  28. Undercharge claims
  29. Underdrains USE Subdrains
  30. Underground construction
  31. Underground facilities USE Underground structures
  32. Underground parking garages
  33. Underground parking garages
  34. Underground railways USE Subways
  35. Underground structures
  36. Underground utility lines
  37. Underpasses
  38. Underride override collisions
  39. Undersealing
  40. Understanding
  41. Understeer
  42. Undervoltage USE Low voltage
  43. Underwater construction
  44. Underwater excavation
  45. Underwater foundations
  46. Underwater paint
  47. Underwater photography
  48. Underwater pipelines
  49. Underwater pipelines
  50. Underwater sound
  51. Underwater structures
  52. Underwater tunnels
  53. Underwater vehicles
  54. Undisturbed samples
  55. Undomesticated living things
  56. Undrained shear strength
  57. Undrained shear tests
  58. Undrained strength
  59. Unearned increment
  60. Unemployed
  61. Unemployment
  62. Unevenness USE Roughness
  63. Ungulates
  64. Uniaxial stress
  65. Uniformity USE Standardization
  66. Uniforms
  67. Uninterrupted flow
  68. Unit costs
  69. Unit hydrographs
  70. Unit trains
  71. Unitized cargo
  72. Units of measurement USE Systems of measurement
  73. Universal joints
  74. Universal product codes
  75. Universities and colleges
  76. Universities and colleges
  77. Unleaded gasoline
  78. Unlicensed driving USE Driving without a license
  79. Unloaders
  80. Unloading facilities
  81. Unmanned aircraft USE Drone aircraft
  82. Unpaved roads
  83. Unreinforced concrete
  84. Unsafe drivers USE High risk drivers
  85. Unsaturated soils
  86. Unsignalized intersections
  87. Unsprung weight
  88. Unsprung weight
  89. Unstable soil
  90. Unsteady flow
  91. Updating USE Modernization
  92. Upgrades (Roads)
  93. Upgrading USE Modernization
  94. Uplift USE Uplift pressure
  95. Uplift pressure
  96. Upper extremities
  97. Upper income groups
  98. Upwelling
  99. Uranium
  100. Uranium acetate USE Uranyl acetate
  101. Uranium inorganic compounds
  102. Uranyl acetate
  103. Urban areas
  104. Urban design
  105. Urban development
  106. Urban goods movement
  107. Urban growth
  108. Urban highways
  109. Urban planning USE City planning
  110. Urban population
  111. Urban renewal
  112. Urban sprawl
  113. Urban transit
  114. Urban transportation
  115. Urban transportation policy
  116. Urban travel
  117. Urbanization
  118. Urea
  119. Urethane
  120. Urinalysis
  121. Urine
  122. Urine alcohol levels
  123. Used aircraft industry
  124. Used vehicle industry
  125. User benefits
  126. User charges
  127. User interfaces (Computer science)
  128. User manuals (Computer programs) USE Computer program documentation
  129. User side subsidies
  130. Utility access holes USE Manholes
  131. Utility aircraft
  132. Utility airports
  133. Utility poles
  134. Utility theory
  135. Utility vehicles
  136. Utilization