the original wonderland sideroad was a 3.24 km gravel road running between southdale road and the thames river, with wonderland gardens located at the end of the road just before the river. in 1970, a major upgrade took place in conjunction with the new westmount development, that saw the road widened to four lanes with a centre median south of commissioners road, and a new two-lane road south of viscount road that bypassed the existing road to the east, connecting at southdale road with the old airport road which ran south 2.5 km to highway 135. (airport road was so-named because the london airport was located in the southwest area before 1942.)