m4ra: Many-to-Many Multi-Modal Routing Aggregator
- Travel times using any combination of three transport modes: foot,
bicycle, and public transport.
- Ratios of multi-modal times to equivalent travel times in private
automobile, including local infrastructure-specific estimates of time
delays due to parking.
Data Needs
- A representation of the local street network, in
osmdata_sc
format,
potentially including elevation data to accommodate effects of
incline on pedestrian and bicycle travel times.
- A GTFS (General Transit Feed Specification)-format data file of
public transport data for the study city or location.
How?
The following parameters need to be specified:
- Name of city - used to name locally-cached files formed during
pre-processing.
- Day of the week for which public transport is to be analysed.
- Starting time limits defining the public transport component of the
journey, from which the fastest single journey to every destination
will be calculated.
- Initial and final modes of transport, as either pedestrian or
bicycle.
- A selection of starting points from which to calculate either
multi-modal travel times, or durations of those times to equivalent
automobile times.
Travel times are always calculated to every destination point in a given
network, with a single query returning matrices of times, one row for
each origin point, and columns holding travel times to all possible
destination points.