Principles of Building Planning MCQ with answer and solution

Concept

Recommended setback distance for wide roads

Formula

NONE

Step-by-step solution

1. Setbacks are designated open spaces around buildings to ensure light, air, and safety from traffic. 2. For wider roads exceeding 12 m in width, standard municipal regulations mandate a minimum setback of 3.0 m. 3. Therefore, the recommended setback distance is 3.0 m. Answer: D

Explanation

Setback regulations require greater open space in front of buildings adjacent to wider roads to accommodate higher traffic, future road widening, and safety margins. For roads exceeding 12 meters in width, standard building bylaws specify a recommended setback of 3.0 meters. This ensures proper light, ventilation, and road safety along major thoroughfares.

Why the other options are wrong

A) 1.0 m setback is applicable for narrow streets or small plots where building clearance needs are minimal. B) 1.5 m setback is recommended for road widths under 6 m. C) 2.0 m setback is suitable for medium street widths between 6 m and 12 m.

Shortcut

Roads wider than 12 m require a minimum recommended setback of 3.0 m.

Common mistake

Choosing a smaller setback value like 1.5 m or 2.0 m that applies only to narrower street widths.