18. IMD
index of multiple deprivation
89 million journeys
19.
20. 1. map IMD – public transport
obtains the deprivation of locations
2. infer familiar locations
assigns people to top-2 places
3. user-visit matrix
binary matrix reflects if u has visited station j
4. community-flow matrix
station-by-station. familiar with x, travels to y
5. flow, social equaliser & heterogeneity counts
21. main results
correlating mobility with social deprivation
1. area IMD ~ areas it receives visits from
r = 0.21, p < 0.001
2. no homophily effect
r = 0.02, p < 0.001
3. heterogeneity holds for well-off areas
r = -0.16, p < 0.001