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Q: In which of the following road construction, the finished surface layer of the pavement is given a cross slope of 1 in 45?
  • A. Macadam construction
  • B. Telford construction
  • C. Tresaguet construction
  • D. Metcalf construction
Correct Answer: Option B - Telford Construction–His work started in early 19th century in England. Main feature are– He provided level subgrade of width 9 m. A binding layer of bearing course 4 cm thick was provided with cross slope of 1 in 45. Thickness of foundation stone varied from 17 cm at edges to 22 cm at centre.
B. Telford Construction–His work started in early 19th century in England. Main feature are– He provided level subgrade of width 9 m. A binding layer of bearing course 4 cm thick was provided with cross slope of 1 in 45. Thickness of foundation stone varied from 17 cm at edges to 22 cm at centre.

Explanations:

Telford Construction–His work started in early 19th century in England. Main feature are– He provided level subgrade of width 9 m. A binding layer of bearing course 4 cm thick was provided with cross slope of 1 in 45. Thickness of foundation stone varied from 17 cm at edges to 22 cm at centre.