CE-502 Transportation Engineering - II - Jun 2025 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
   aBriefly outline the highway development in India with emphasis on recent developments.
   How to answer

   • Outline Jayakar Committee, Nagpur, Bombay and Lucknow plans
   • Mention NHDP, NHAI, PMGSY, Bharatmala, expressways
   • Highlight recent developments: green highways, FASTag, BOT/HAM
2. 7 Marks
   bHow is the financing of roads done? Also discuss the financing of roads in India.
   How to answer

   • Sources of road financing: taxation, tolls, loans, bonds
   • Central Road Fund, budgetary allocation
   • Financing in India: NHAI, BOT, BOOT, HAM, private participation
3. 7 Marks
   aWhat is the use of horizontal curves in road alignment? Describe in brief various features of different types of curves provided on roads.
   How to answer

   • Purpose of horizontal curves: change direction, safety, sight distance
   • Types: simple, compound, reverse, transition/spiral
   • Features: radius, superelevation, extra widening, setback
4. 7 Marks
   bOvertaking and overtaken vehicles are at 70 and 40 kmph respectively. Find: i) OSD ii) minimum and desirable length of overtaking zone iii) show the sketch of overtaking zone with location of sign post.
   How to answer

   • OSD formula $OSD = 0.278 V_b t + 2s + 0.278 V T$
   • Assume reaction time, $s = 0.278 V_b t_r$, compute OSD
   • Overtaking zone = 3xOSD and 5xOSD; sketch with sign posts
5. 7 Marks
   aHow flexible pavement is designed by CBR method? Explain with the help of sketch.
   How to answer

   • CBR test concept and design curves for traffic load
   • Determine subgrade CBR, traffic in msa, total thickness
   • Layer thicknesses from CBR design chart; neat cross-section sketch
6. 7 Marks
   bWhat are the various materials required for construction of WBM roads? What are the uses and limitations of WBM roads?
   How to answer

   • WBM materials: coarse aggregate, screenings, binding material
   • Uses: base/sub-base for low traffic, all-weather
   • Limitations: dust, maintenance, not for heavy fast traffic
7. 7 Marks
   aBriefly outline the IRC method (IRC : 58-2002) for designing a rigid pavement.
   How to answer

   • Input parameters: traffic, flexural strength, subgrade k-value
   • Slab thickness from stress ratio and fatigue analysis per IRC 58-2002
   • Check for temperature and load stresses, joints and DLC
8. 7 Marks
   bWhat do you mean by low cost roads? Explain various types of low cost roads.
   How to answer

   • Definition of low cost roads for villages and low traffic
   • Types: earth, gravel, WBM, soil stabilized, thin bituminous
   • Suitability, materials and cost aspects of each
9. 7 Marks
   aExplain in detail the method of mechanical stabilization of soil.
   How to answer

   • Principle of mechanical stabilization: gradation and compaction
   • Procedure: blending aggregates, moisture control, compaction
   • Design of mix, advantages and applications
10. 7 Marks
    bWhat are the various types of traffic markings commonly used? What are the uses of each?
    How to answer

    • Types: centre line, lane, edge, crosswalk, stop, directional arrows
    • Materials and colours used
    • Uses of each for guidance and safety
11. 7 Marks
    aExplain the various aircraft characteristics with the help of neat sketches.
    How to answer

    • Characteristics: weight, wing span, length, turning radius, speed
    • Take-off/landing distance, wheel configuration
    • Neat sketches showing dimensions and clearances
12. 7 Marks
    bThe length of runway under standard conditions is 2050 m. The airport site has an elevation of 420 m. Its reference temperature is $35.0^{\circ}C$. If the runway is to be constructed with an effective gradient of 0.30 percent, determine the corrected runway length.
    How to answer

    • Standard corrections: elevation 7% per 300m, temperature, gradient 20% per 1%
    • Compute elevation, temperature with standard $T_a = 15 - 0.0065h$ and gradient corrections
    • Apply corrections successively to get corrected length
13. 7 Marks
    aDiscuss the different zoning regulations with the help of neat figures.
    How to answer

    • Zoning: approach, horizontal, conical, transitional surfaces
    • Height limitations and slopes per ICAO/FAA
    • Neat plan and sectional figures showing zones
14. 7 Marks
    bWrite short notes on:

    1. i)Instrument Landing System
    2. ii)Precision Approach Radar
    How to answer

    • ILS: localizer, glide slope, markers, function
    • PAR: radar guidance for precision approach
    • Uses in landing under low visibility
15. 14 Marks
    Write short notes on (any four)

    1. i)Runway threshold lighting
    2. ii)Classification of airports
    3. iii)Rotating beacon
    4. iv)Grade separated intersection
    5. v)Trip distribution
    6. vi)Seal coat and tack coat
    How to answer

    • Definition and purpose of each term
    • Key components / classification / function
    • Relevance to highways or airports with sketch where needed