Right-of-way widths – National and State Highways (typical values) Select the correct set of statements regarding normal right-of-way (road land width) for National and State Highways:

Introduction / Context:
Right-of-way (ROW) is the total land width reserved for the roadway, side slopes, drains, and future widening. Standard values vary with terrain and whether the road passes through open country or built-up areas.

Given Data / Assumptions:

• National and State Highways under typical planning standards.
• Representative values used for conceptual design and land acquisition.

Concept / Approach:
Typical guidelines adopt larger ROW in rural stretches (e.g., around 45 m) and reduced widths in built-up stretches based on constraints. In plain/rolling built-up areas ~30 m and in mountainous built-up areas ~20 m are commonly referenced figures.

Step-by-Step Solution:
Check each statement against customary values.Rural/open → ≈ 45 m (true).Plain/rolling built-up → ≈ 30 m (true).Mountainous built-up → ≈ 20 m (true).Therefore, select “All the above”.

Verification / Alternative check:
Planning documents and IRC recommendations list comparable values; agencies may refine them for project-specific constraints.

Why Other Options Are Wrong:

• Individual statements alone do not capture the full pattern; the combination is correct.
• “None of the above” is false since all listed statements are consistent with practice.

Common Pitfalls:
Confusing carriageway width with ROW. ROW includes shoulders, drains, slopes, and reserve land.

Final Answer:
All the above