Travel Time Calculation

Author: R.Fisher (c) 2015
Menu: Grid | Analysis | Travel Time Analysis

Description

Perform travel time calculation. Find further information at Rohan Fisher's web page on Travel Time Modelling with SAGA.

References

Fisher, R., and Lassa, J. (2017): Interactive, open source, travel time scenario modelling: tools to facilitate participation in health service access analysis. International Journal of Health Geographics, 16(13). doi:10.1186/s12942-017-0086-8.
Ray, N., and Ebener, S. (2008): AccessMod 3.0: computing geographic coverage and accessibility to health care services using anisotropic movement of patients. International Journal of Health Geographics, 7(63). doi:10.1186/1476-072X-7-63.

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Destination Points	shapes, input	`DESTINATIONS`	-	-
	Land Cover	grid, input	`LANDCOVER`	-	-
	Travel Times	table, input	`LANDCOVER_TO_TRAVELTIME`	This table supplies average travel times through a cell (in seconds) for each land cover type	-
	Travel Time Zones Classification	table, input, optional	`TRAVELTIME_LUT`	Look-up table for classification of travel time zones.	-
Output	Travel Time	grid, output	`TRAVELTIME_MINUTES`	-	-
Options	Grid System	grid system	`GRID_SYSTEM`	-	-
	Land Cover ID	table field	`FIELD_LANDCOVER`	-	-
	Travel Time	table field	`FIELD_TRAVELTIME`	-	-

Command Line

Usage: saga_cmd tta_tools tta_TravelTime [-DESTINATIONS ] [-LANDCOVER ] [-LANDCOVER_TO_TRAVELTIME ] [-FIELD_LANDCOVER ] [-FIELD_TRAVELTIME ] [-TRAVELTIME_MINUTES ] [-TRAVELTIME_LUT ]
  -DESTINATIONS:           	Destination Points
	shapes, input
  -LANDCOVER:              	Land Cover
	grid, input
  -LANDCOVER_TO_TRAVELTIME:	Travel Times
	table, input
  -FIELD_LANDCOVER:        	Land Cover ID
	table field
  -FIELD_TRAVELTIME:       	Travel Time
	table field
  -TRAVELTIME_MINUTES:     	Travel Time
	grid, output
  -TRAVELTIME_LUT:         	Travel Time Zones Classification
	table, input, optional