CE-502 Transportation Engineering - II - Dec 2024 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

1. 7 Marks
   aWhat types of surveys are conducted for locating a new highway? Explain the objectives of map study and reconnaissance surveys.
   How to answer

   • Types of surveys for new highway location: map study, reconnaissance, preliminary, detailed surveys
   • Objectives of map study: alignment alternatives from topographic maps
   • Objectives of reconnaissance: field verification, control points, constraints
   • Sequence and data collected in each survey
2. 7 Marks
   bExplain the various road patterns with the help of neat sketches.
   How to answer

   • List road patterns: rectangular, radial, star, grid-iron, hexagonal etc.
   • Brief description of each pattern
   • Neat sketches for each pattern
   • Suitability / examples
3. 7 Marks
   aExplain summit and valley curves and the various cases when these are formed while two different gradients meet.
   How to answer

   • Definition of summit curve and valley curve
   • Cases of gradient combinations forming summit curves
   • Cases forming valley curves
   • Sketches of gradient meets
4. 7 Marks
   bDesign the rate of super elevation for a horizontal highway curve of radius 500 m and speed 100 kmph.
   How to answer

   • Formula for super elevation $e = V^2/(225R)$
   • Substitution of $V=100$ kmph, $R=500$ m
   • Check against maximum and minimum values per IRC
   • Design value of super elevation rate
5. 7 Marks
   aWhat are the desirable requirements of a bituminous mix? Discuss the significance of each requirement.
   How to answer

   • Desirable requirements: stability, durability, flexibility, skid resistance etc.
   • Meaning of each requirement
   • Significance for performance of bituminous mix
   • Summary of Marshall criteria
6. 7 Marks
   bWhat is surface dressing? Write the construction procedure and give the material specification for surface dressing.
   How to answer

   • Definition of surface dressing
   • Material specifications: binder and aggregates
   • Step-by-step construction procedure
   • Uses and precautions
7. 7 Marks
   aHow the stresses are found in rigid pavement using Westergaard's analysis? Explain the formula involved.
   How to answer

   • Westergaard analysis assumptions: slab on Winkler foundation
   • Stress cases: interior, edge, corner loading
   • Formulas involving radius of relative stiffness, equivalent radius
   • Temperature and wheel load stresses
8. 7 Marks
   bA cement concrete pavement is to be designed. Present traffic is 3000 commercial vehicles per day. Design life is 20 years and rate of traffic increase is 7.5%. Calculate the design traffic as per IRC 58-2002.
   How to answer

   • Design traffic formula as per IRC 58-2002
   • Given: P=3000 cvpd, n=20 years, r=7.5%
   • Computation of growth factor $(1+r)^n-1/r$
   • Cumulative commercial vehicles for design
9. 7 Marks
   aExplain step by step construction of water bound Macadam road.
   How to answer

   • Preparation of subgrade and spreading coarse aggregate
   • Rolling, application of screenings and watering
   • Rolling and curing stages
   • Specifications and checks
10. 7 Marks
    bWhat are the objectives of street/road lighting? Briefly discuss the various design factors involved.
    How to answer

    • Objectives of street lighting: safety, visibility, aesthetics
    • Design factors: mounting height, spacing, intensity, uniformity
    • Types of lamps and layout
    • Brief discussion of each factor
11. 7 Marks
    aName the different aircraft characteristics. How do they affect planning and design of airports?
    How to answer

    • Aircraft characteristics: weight, wing span, length, speed, turning radius etc.
    • Effect on runway length, width, pavement strength
    • Effect on taxiway, apron and terminal planning
    • Examples of critical aircraft
12. 7 Marks
    bDraw a cross section of taxiway. Explain the importance of different parts.
    How to answer

    • Cross-section sketch of taxiway with pavement, shoulders, strip
    • Dimensions and slopes as per standards
    • Importance of each part: load, drainage, safety
    • Marking and lighting provisions
13. 7 Marks
    aWhat are the different considerations for airport site selection with respect to zoning laws?
    How to answer

    • Airport site selection factors and zoning laws concept
    • Considerations: land use, height zoning, noise zoning
    • Obstruction clearance and approach zones
    • Compliance with ICAO/FAA zoning regulations
14. 7 Marks
    bWhat are imaginary surfaces? What is their significance? Explain with the aid of neat sketches the shape of each surface for different types of airport.
    How to answer

    • Definition of imaginary surfaces: approach, conical, horizontal etc.
    • Significance for obstruction limitation
    • Neat sketches of shape of each surface
    • Variation for different airport types
15. 14 Marks
    Write short notes on (any four)

    1. a)Taxiway lighting
    2. b)Need of air traffic control
    3. c)Wind rose diagram and its utility
    4. d)Trip generation
    5. e)Runway length corrections
    6. f)Importance of surface and sub-surface drainage
    How to answer

    • Select any four topics from a to f
    • Definition and key points for each selected topic
    • Relevant diagrams/factors where applicable
    • Significance in transportation engineering