BCE602 – TRANSPORTATION ENGINEERING
Time: 3 Hours | Max Marks: 70
SECTION A – Short Answer (Attempt ALL)
2 × 7 = 14 marks
Write definition + 1–2 key points / formula
Modes of Transportation & Mediums
Road (land), Rail (land), Waterways (water), Airways (air), Pipelines (underground)
Factors Controlling Road Alignment
Obligatory points, traffic, terrain, economy, safety, drainage, environment
Camber
Cross slope for drainage
IRC value for bituminous pavement (heavy rain): ~2.5% (1 in 40)
Traffic Volume vs Traffic Density
Volume: vehicles per unit time Density: vehicles per km length
Time Mean Speed vs Space Mean Speed
TMS: average of spot speeds SMS: average over road length (SMS < TMS)
Modulus of Subgrade Reaction (k)
Pressure per unit deflection
Evaluated by Plate Load Test
Flexible Pavement Layers (Sketch)
Wearing course, Binder course, Base, Sub-base, Subgrade
SECTION B – Medium Answer (Attempt ANY THREE)
7 × 3 = 21 marks
Write concept → explanation → examples/diagrams
1. Jaykar Committee Recommendations
Central Road Fund (fuel cess) IRC formation
Road research & standardisation Long-term road planning
2. Gradient: Definition & Classification (Plain Terrain – IRC)
Ruling, Limiting, Exceptional, Minimum Typical values (plain terrain):
Ruling ≈ 3.3% (1 in 30) Limiting ≈ 5% (1 in 20)
3. Origin & Destination (O&D) Studies
Methods: Roadside interview, License plate, Home interview, GPS
Explain one method + data presentation (tables, desire lines)
4. Flexible Pavement Design (IRC 37)
Traffic estimation (msa) Subgrade CBR
Layer thickness selection Design life, reliability
5. Equipment for Excavation & Compaction
Excavation: bulldozer, excavator Compaction: rollers (smooth, sheep foot, pneumatic)
SECTION C – Attempt ANY ONE
7 × 1 = 7 marks
(a) 20-Year Road Development Plans (India)
Nagpur (1943–63) Bombay (1961–81) Lucknow (1981–2001)
Vision plans: connectivity, density targets
(b) Road Length Calculation (Numerical – Census Data)
Use standard planning formulas Find NH, SH, MDR, ODR, VR lengths
