Highway Engineering - May 2014
Civil Engineering (Semester 5)
TOTAL TIME: HOURS
Explain the following
1 (a) 1) Central Road Fund(4 marks)
1 (a) 2) Indian Road Congress.(3 marks)
1 (b) The following data were collected for planning the road development programme of a district.
(i) Total area = 9600 km2.
(ii) Agricultural and developed area = 3200 km2
(iii) Existing railway track length = 105 km.
(iv) Existing length of metalled road = 322 km
(v) Existing length of unmetalled road = 450 km.
(vi) Numbers of towns of villages in different population ranges are as below.
|Number of Village and towns||8||40||130||280||590|
Calculate the additional lengths of metalled and unmetalled roads for the road system based on Nagpur Road Plan formulae for this district.(7 marks) 2 (a) Explain with sketches the various factors controlling the alignment of roads.(7 marks)
Write a short note on
2 (b) 1) Carriage way.(4 marks) 2 (b) 2) Width of roadway.(3 marks) 2 (c) Draw a typical cross section of the following roads (i) M.D.R in embankment (ii) National Highway in embankment in rural area.(7 marks) 3 (a) The speed of Overtaking and overtaken vehicles are 70 and 40 kmph respectively on a two way traffic road. If the acceleration of overtaking vehicle is 0.99 m/sec2 . Calculate safe overtaking sight distance. Adopt t = 2.0 sec.(7 marks) 3 (b) Discuss various factors affecting on subgrade soil strength.(7 marks) 3 (c) Compare tar and bitumen. Explain softening point test on bitumen.(7 marks) 3 (d) Explain Joint Filler and Sealer with sketches.(7 marks) 4 (a) What are the methods of subsurface drainage? Explain subsurface drainage system with transverse drain with neat sketch.(7 marks) 4 (b) Discuss various types of curves in alignment of hill roads.(7 marks) 4 (c) What are design factors for highway lighting? Discuss any two.(7 marks) 4 (d) Explain protective works for hill roads.(7 marks) 5 (a) What are different vehicular characteristics which affect in road design? Briefly Explain.(7 marks) 5 (b) Draw neat Sketches of various types of interchanges.(7 marks) 5 (c) Define: Traffic volume, Traffic density, Time-mean speed, Space-mean speed, Journey speed, Running Speed, Spot speed.(7 marks) 5 (d) What are the purposes of parking studies? Explain method of on street parking.(7 marks)