Rr320106-transportation-engineering

Set No. 1

Code No: RR320106

III B.Tech II Semester Supplimentary Examinations, Aug/Sep 2008 TRANSPORTATION ENGINEERING (Civil Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. (a) What are obligatory points? How do they affect road alignment? Explain by giving suitable sketches wherever needed. (b) Explain briefly the modified classification of road system in India as per the Third twenty year road development plan, 1981-2001. [8+8] 2. (a) Derive an expression for finding the extra widening required on horizontal curves. (b) Calculate the stopping sight distance for a design speed of 100 kmph. Take the total reaction time as 2.5 seconds and the coefficient of friction = 0.35. [8+8] 3. (a) Explain how the speed and delay studies are carried out. What are the various uses of speed and delay studies. (b) What are the applications of location file, spot maps, collision diagrams and condition diagrams? [8+8] 4. (a) What are the guide lines for selecting a rotary type of intersection? Explain. (b) How traffic islands can effectively used at an intersection to bring in more orderly and safe movement? Explain by giving suitable examples supported by diagram. [8+8] 5. What are the various factors to be considered in the pavement design? Discuss the significance of each. [16] 6. (a) What are the different types of sleepers used in the track on Indian Railways? Write down in brief the advantages and disadvantages of each type. (b) Illustrate with sketches, the various fastenings used to fasten rails to sleepers. Discuss the merits and demerits. [8+8] 7. (a) Define Interlocking and explain the principle of interlocking. Describe the various mechanical devices used for Interlocking. (b) What do you understand by ?Negative superelevation?? When from layout of a B.G. yard, a 80 curve branches off from a 40 main curve in an opposite direction. If speed is restricted to 28.95 kmph and permissible value of cant deficiency is 7.61 cm, determine the speed restriction on the main line. [8+8] 8. (a) What are design elements connected with a runway? Explain.

1 of 2

Set No. 1

Code No: RR320106

(b) Explain the various surveys to be conducted and the data to be collected for airport site selection. [8+8] ⋆⋆⋆⋆⋆

2 of 2

Set No. 2

Code No: RR320106

III B.Tech II Semester Supplimentary Examinations, Aug/Sep 2008 TRANSPORTATION ENGINEERING (Civil Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. (a) Briefly outline the classification based on location and function as suggested in the Nagpur road plan. (b) What are the various engineering surveys required for fixing the final alignment of a highway? Explain. [8+8] 2. (a) Enumerate the various design factors controlling the vertical alignment of highways. (b) Design the superelevation required at a horizontal curve of radius 300 m for speed of 60 kmph. Assume suitable data. [8+8] 3. (a) Discuss the various traffic studies and their importance. (b) Explain various measures that may be taken to prevent accidents.

[8+8]

4. (a) Under what circumstances rotary is justified? Give a neat sketch of rotary intersection and indicate various components. (b) Give the classification of traffic signs, explain their standards and specifications. [8+8] 5. What are the various factors to be considered in the pavement design? Discuss the significance of each. [16] 6. (a) What are the different types of sleepers used in the track on Indian Railways? Write down in brief the advantages and disadvantages of each type. (b) Illustrate with sketches, the various fastenings used to fasten rails to sleepers. Discuss the merits and demerits. [8+8] 7. (a) What are the elements to be considered for the geometric design of a railway track? (b) Establish the relation ship between radius and versine of a curve. How do you determine degree of curve in the field? [8+8] 8. What is meant by the basic runway length? Discuss the three cases to be considered. [16] ⋆⋆⋆⋆⋆

1 of 1

Set No. 3

Code No: RR320106

III B.Tech II Semester Supplimentary Examinations, Aug/Sep 2008 TRANSPORTATION ENGINEERING (Civil Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. (a) What are the significant recommendations of Jayakar committee report? Mention how this helped in road development in India. (b) What kind of Engineering surveys are required for the alignment of highways? Explain. [8+8] 2. (a) Define road gradient and mention its various types. Explain briefly. (b) Calculate the super elevation is a road curve of 120 m radius with vehicle traveling at 96 kmph. The width of the road in 15 m and coefficient of friction is 0.12. [8+8] 3. (a) Discuss the various traffic studies and their importance. (b) Explain various measures that may be taken to prevent accidents.

[8+8]

4. (a) Under what circumstances rotary is justified? Give a neat sketch of rotary intersection and indicate various components. (b) Give the classification of traffic signs, explain their standards and specifications. [8+8] 5. What are the various factors to be considered in the pavement design? Discuss the significance of each. [16] 6. Explain the functions of sleepers and ballast in a railway track. Explain how the spacing of sleepers are determined. Give some reasons for the necessity of regular maintenance of ballast. [16] 7. (a) What is interlocking? Explain its fundamentals(rules). Applying these rules to a way side station prepare a interlocking diagram and interlocking table. (b) On a 50 curve for main line, having the branch line also of 50 curve. Calculate the superelevation and the speed on the branch line, if the maximum speed permitted on the main line is 48 kmph. [8+8] 8. (a) What is wind rose diagram? Explain how a wind rose diagram is prepared and used for runway orientation. (b) Name the different characteristics of aircrafts. How do they affect the planning and design of airports? [8+8] ⋆⋆⋆⋆⋆

1 of 1

Set No. 4

Code No: RR320106

III B.Tech II Semester Supplimentary Examinations, Aug/Sep 2008 TRANSPORTATION ENGINEERING (Civil Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. (a) What are the policies and goals of the third road development plan for 19812001? (b) Briefly outline the features of Rectangular or block pattern of roads with a neat sketch. [8+8] 2. (a) What are the general controls to be kept in view in determining the horizontal alignment of road. (b) A highway of width 7.5 m radius 150 m with a speed of 120 kmph and the length of the wheel base 7.0 m. Find the extra widening required. [8+8] 3. (a) Discuss the various traffic studies and their importance. (b) Explain various measures that may be taken to prevent accidents.

[8+8]

4. (a) What are the requirements of a good road intersection? Explain. (b) Explain the classification of Traffic signs by giving typical sketches of each type. Describe the standard features associated with each category of traffic signs. [8+8] 5. What are the various factors to be considered in the pavement design? Discuss the significance of each. [16] 6. (a) What are the functions of rails? Name various types of rails in use. Which one is widely used? How is the weight of rail section usually determined? (b) List the various types of sleepers used in Indian Railways. Describe briefly the mono block prestressed concrete sleepers. What are the reasons for its ever-increasing adoptions world over? [8+8] 7. (a) Explain the concept of interlocking and its objectives. Also discuss the principles of interlocking. (b) Explain the necessity of gradients. Discuss all the types of gradients giving their permissible values adopted on Indian Railways. [8+8] 8. (a) What is wind rose diagram? Explain how a wind rose diagram is prepared and used for runway orientation. (b) Name the different characteristics of aircrafts. How do they affect the planning and design of airports? [8+8] ⋆⋆⋆⋆⋆ 1 of 1