Getting to work in the GCR
A key factor in understanding a functional city-region is the daily flows of people between its constituent parts. Traffic flow is an important urban efficiency, sustainability and inclusivity concern, as congestion impacts the cost of doing business, air-quality and fuel consumption, and residents' quality of life.
Forty years ago a number of large household travel surveys were conducted for the 1975 PWV Transportation Study. These asked respondents for the starting time of all their trips. As an example of historical transport patterns in the region, results for white and African respondents in the 1974 Pretoria survey are compared in the figures below. The comparison tell us that peak trip start times for whites were between 7am and 8am; it was much earlier for Africans.
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