CE-502 Transportation Engg. - II - Dec 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
   aExplain the principles of highway planning. Discuss road planning in India and methods of road financing.
   How to answer

   • Define highway planning objectives and principles
   • Discuss road planning in India - Nagpur, Bombay, Lucknow plans
   • Describe methods of road financing - taxes, tolls, budget allocations
2. 7 Marks
   bA road is to be designed for a design speed of $80$ km/h. If radius of curve is $400$ m, calculate the required superelevation assuming no side friction.
   How to answer

   • Formula for superelevation $e = V^2/(225R)$ with $f=0$
   • Convert speed and substitute $V=80$ km/h, $R=400$ m
   • Compute $e$ value and check against maximum
3. 7 Marks
   aExplain engineering surveys required for highway alignment.
   How to answer

   • List stages: map study, reconnaissance, preliminary, final survey
   • Explain purpose and work in each survey
   • Mention selection of highway alignment factors
4. 7 Marks
   bCalculate the stopping sight distance for a vehicle moving at $60$ km/h. Assume reaction time $= 2.5$ s and coefficient of friction $= 0.35$.
   How to answer

   • Formula $SSD = 0.278Vt + V^2/(254f)$
   • Substitute $V=60$ km/h, $t=2.5$ s, $f=0.35$
   • Compute lag distance + braking distance = SSD
5. 7 Marks
   aExplain the design of flexible pavements and discuss different types of bituminous layers.
   How to answer

   • Define flexible pavement and load distribution principle
   • Explain design methods - CBR, Group Index
   • Discuss types of bituminous layers - surface, binder, base
6. 7 Marks
   bA flexible pavement is to carry a wheel load of $40$ kN. Calculate the contact pressure if tyre contact area is $0.02$ m$^2$.
   How to answer

   • Formula contact pressure $p = P/A$
   • Substitute $P=40$ kN, $A=0.02$ m$^2$
   • Compute pressure in kN/m$^2$ / MPa
7. 7 Marks
   aExplain rigid pavements. Discuss their advantages, disadvantages.
   How to answer

   • Define rigid pavement and load action by slab
   • List advantages - durability, low maintenance
   • List disadvantages - high cost, joints, curing time
8. 7 Marks
   bCalculate the spacing of dowel bars if slab length is $4.5$ m and dowel bars are placed at $300$ mm center to center.
   How to answer

   • Given slab length 4.5 m and c/c spacing 300 mm
   • Number of dowels = length/spacing + 1
   • Compute number and comment on spacing
9. 7 Marks
   aExplain low cost roads and principles of soil stabilization.
   How to answer

   • Define low cost roads - need and types
   • Explain soil stabilization objectives
   • Describe principles - mechanical, chemical stabilization
10. 7 Marks
    bA road embankment has a width of $10$ m, height $1.5$ m and length $200$ m. Calculate the quantity of earthwork.
    How to answer

    • Assume cross-section: quantity = width x height x length
    • Substitute $10$ m, $1.5$ m, $200$ m
    • Compute earthwork volume in m$^3$
11. 7 Marks
    aExplain surface and sub-surface drainage of roads.
    How to answer

    • Define need for road drainage
    • Explain surface drainage - camber, side drains
    • Explain sub-surface drainage - sub-drains, capillary cut-off
12. 7 Marks
    bAt a rotary intersection, if the design speed is $50$ km/h and radius is $20$ m, calculate the centrifugal ratio.
    How to answer

    • Formula centrifugal ratio $= V^2/(127R)$
    • Substitute $V=50$ km/h, $R=20$ m
    • Compute ratio
13. 7 Marks
    aExplain airport site selection and classification of airports.
    How to answer

    • List factors for airport site selection
    • Explain classification - ICAO, FAA, based on function
    • Mention runway orientation, wind, topography
14. 7 Marks
    bCalculate the basic runway length for an aircraft if landing speed is $65$ m/s and average deceleration is $2.5$ m/s$^2$.
    How to answer

    • Formula basic runway length $L = V^2/(2a)$
    • Substitute landing speed $65$ m/s, deceleration $2.5$ m/s$^2$
    • Compute length in m
15. 7 Marks
    aExplain airport obstructions and zoning regulations. Describe airport lighting systems.
    How to answer

    • Define obstructions and zoning regulations - approach, clear zone
    • Explain height restrictions and imaginary surfaces
    • Describe airport lighting - runway, taxiway, approach lights
16. 7 Marks
    bIf an aircraft travels at $240$ km/h, calculate the distance covered in $2.5$ minutes during approach.
    How to answer

    • Convert speed $240$ km/h to m/s or time $2.5$ min to hours
    • Formula distance = speed x time
    • Compute distance in km