CHAPTER IV.

TRAFFIC.

Interests involved in construction and maintenance of streets --

Requirements of a good roadway -- Wearing effect of traffic -- Mr.

Deacon’s standard -- Effect of horses’ hoofs on roadways -- Remarks on

shoeing -- Traction on roads -- Tables of resistance -- Forces tending

to destroy momentum -- Table of tractive force, etc. -- Another table

giving inclinations -- Proper gradients of roadways -- Table of

resistance by Crompton -- Wheel resistance -- Mr. Haywood and safety

of traffic -- Stopping and starting vehicles -- Safe width of roadways

-- Vehicles and pedestrians passing each other -- Sanctuaries --

Danger of crossings 25

The Municipal and Sanitary Engineer's Handbook · 第 4 / 39 章