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