Paper 2: VISUAL EFFECTS

Intrusive effects of roads and traffic on vision are more complex than those on hearing and other senses for a number of reasons:

(a) there are no generally accepted measurement pro cedures;

(b) visual effect is normally due to the interaction of the roads and traffic with the setting;

(c) there are wider differences of opinion about visual matters than those about noise and smells; in par ticular some people like the view of traffic.

There are many visual aspects of roads and traffic that affect people:

(a) the appearance of traffic, which will vary with its composition its volume and its speed;