The table below shows the results of a survey of the average number of cars travelling through three suburban roads during working hours in a 10-year pollution monitoring programme. Traffic calming was introduced in Harper Lane at the beginning of 1999

The table demonstrates the mean result in one working hour of how many cars travelling through three suburban roads

Harper

Lane

, Great

York

Way

,

Long

Correct word choice

and Long

show examples

Lane

, using a 10-year pollution monitoring programme and how the traffic calming method affected those numbers after being introduced in

Harper

Lane

in early 1999. In short,

while

the number of cars per hour passing Great

York

Way

and Long

Lane

had slightly fluctuated between 450 to 800,

Harper

Lane

had witnessed a surge to nearly 12 times from 82 to 915

Change preposition

in

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the period between 1993 and 1998. In early 1999, after presenting Trafficalm, the result in

Harper

Lane

dropped sharply to 204

then

decrease softly to 173 before staying remains within the range 170 to 200 in the following years.

Otherwise

, Great

York

Way

and Long Lance rose dramatically in 900 and 1000 respectively. Though Great

York

Way

then

stabilized, Long

Lane

hit 1400 in 2001 before reaching a plateau.