 In the decade following World War II, automobile use in North America increased dramatically, inundating many highways on the approach to and within urbanized areas with heavy traffic.As a result, freeways and bypasses were constructed throughout the province, allowing drivers not destined for those locations avoid congestion.In 1957, the DHO announced that Highway 402 would be extended east of Sarnia to London, starting with the construction of an interchange at Modeland Road.