Camber recommendations – cement concrete pavements For cement concrete roads, the usual camber (cross slope) provided is:

Introduction / Context:
Camber (cross slope) is provided to drain water off the carriageway. Recommended ranges vary with surface type. Bituminous surfaces typically have steeper cambers than cement concrete because of surface texture and drainage behavior.

Given Data / Assumptions:

• Surface: cement concrete pavement (CCP).
• Objective: select the common camber range for CCP.

Concept / Approach:
Typical guidance sets CC pavement camber at a gentler slope than bituminous. A classic range cited in practice is about 1 in 60 to 1 in 72 for CC, while bituminous often uses 1 in 36 to 1 in 48.

Step-by-Step Solution:
Identify surface as CC → choose flatter camber range.Select 1 in 60 to 1 in 72.

Verification / Alternative check:
Drainage calculations confirm that this range gives adequate runoff without discomfort to traffic on CC surfaces.

Why Other Options Are Wrong:

• Steeper ranges (e.g., 1 in 20) are suited to surfaces like gravel or high-texture bituminous, not CC.
• Intermediate ranges listed do not reflect the standard CC recommendation.

Common Pitfalls:
Confusing bituminous and CC recommended camber values; always link camber to surface type.

Final Answer:
1 in 60 to 1 in 72