1. The students used the following methods to test Hypothesis 1:
• pedestrian counts
• survey of building heights
• survey of traffic restrictions (controls)

(i)

The students did pedestrian counts at 30 sites around the town centre. In the space below, draw a recording sheet the students could have used at each site.

[3]

(ii)

Describe an appropriate method to ensure the students obtained reliable results from the pedestrian count.

[4]

The results of the pedestrian count are shown in Fig. 1.1 below. Isolines have been drawn on the map to show the variation in the number of pedestrians.

(iii)

On Fig. 1.1, complete the isoline that shows 200 pedestrians.

[2]