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Table 1 PT attributes for the calculation of the Reachability index

From: Measuring public transport accessibility to fixed activities and discretionary opportunities: a space–time approach

Code

Attribute

Description

Indicator

x1

Total travel time

Total door-to-door travel time (tt) needed to travel from a to j and from j to b in the available time window

\({tt}_{aj}+{tt}_{jb}\)

x2

Out-of-vehicle travel time

Only out-of-vehicle travel time (ott) needed to travel from a to j and from j to b in the available time window. It includes walking, waiting and transfer time

\({ott}_{aj}+{ott}_{jb}\)

x3

Travel-chain sections

Number of travel-chain sections (l) separated by transfers needed to travel from a to j and from j to b in the available time window

\({l}_{aj}+{l}_{jb}\)