From 30.000 feet#
duarouter imports different demand definitions, computes vehicle routes that may be used by sumo using shortest path computation; When called iteratively duarouter performs dynamic user assignment (DUA). This is facilitated by the tool duaIterate.py which converges to an equilibrium state (DUE).
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Purpose:
A) Building vehicle routes from demand definitions
B) Computing routes during a user assignment
C) Repairing connectivity problems in existing route files
- System: portable (Linux/Windows is tested); runs on command line
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Input (mandatory):
A) a road network as generated via netconvert or netgenerate, see Building Networks
B) a demand definition, see Demand Modelling
- Output: Definition of Vehicles, Vehicle Types, and Routes usable by sumo
- Programming Language: C++
Usage Description#
Duarouter has two main purposes: Computing fastest/optimal routes directly as well as iteratively in the context of Dynamic_User_Assignment.
Outputs#
The primary output of duarouter is a .rou.xml file which has its name specified by the option -o). Additionally a .rou.alt.xml with the same name prefix as the .rou.xml file will be generated. This route alternative file holds a routeDistribution for every vehicle. Such a routeDistribution is used during dynamic user assignment (DUA) but can also be loaded directly into sumo.
Options#
You may use a XML schema definition file for setting up a duarouter configuration: duarouterConfiguration.xsd.
Configuration#
All applications of the SUMO-suite handle configuration options the same way. These options are discussed at Basics/Using the Command Line Applications#Configuration Files.
Option | Description |
---|---|
-c <FILE> --configuration-file <FILE> |
Loads the named config on startup |
-C <FILE> --save-configuration <FILE> |
Saves current configuration into FILE |
--save-configuration.relative <BOOL> | Enforce relative paths when saving the configuration; default: false |
--save-template <FILE> | Saves a configuration template (empty) into FILE |
--save-schema <FILE> | Saves the configuration schema into FILE |
--save-commented <BOOL> | Adds comments to saved template, configuration, or schema; default: false |
Input#
Option | Description |
---|---|
-n <FILE> --net-file <FILE> |
Use FILE as SUMO-network to route on |
-d <FILE> --additional-files <FILE> |
Read additional network data (districts, bus stops) from FILE(s) |
-t <FILE> --route-files <FILE> |
Read sumo routes, alternatives, flows, and trips from FILE(s) |
--phemlight-path <FILE> | Determines where to load PHEMlight definitions from; default: ./PHEMlight/ |
--phemlight-year <INT> | Enable fleet age modelling with the given reference year in PHEMlight5; default: 0 |
--phemlight-temperature <FLOAT> | Set ambient temperature to correct NOx emissions in PHEMlight5; default: 1.79769e+308 |
-w <FILE> --weight-files <FILE> |
Read network weights from FILE(s) |
--lane-weight-files <FILE> | Read lane-based network weights from FILE(s) |
-x <STRING> --weight-attribute <STRING> |
Name of the xml attribute which gives the edge weight; default: traveltime |
--junction-taz <BOOL> | Initialize a TAZ for every junction to use attributes toJunction and fromJunction; default: false |
Output#
Option | Description |
---|---|
-o <FILE> --output-file <FILE> |
Write generated routes to FILE |
--vtype-output <FILE> | Write used vehicle types into separate FILE |
--keep-vtype-distributions <BOOL> | Keep vTypeDistribution ids when writing vehicles and their types; default: false |
--emissions.volumetric-fuel <BOOL> | Return fuel consumption values in (legacy) unit l instead of mg; default: false |
--named-routes <BOOL> | Write vehicles that reference routes by their id; default: false |
--write-license <BOOL> | Include license info into every output file; default: false |
--output-prefix <STRING> | Prefix which is applied to all output files. The special string 'TIME' is replaced by the current time. |
--precision <INT> | Defines the number of digits after the comma for floating point output; default: 2 |
--precision.geo <INT> | Defines the number of digits after the comma for lon,lat output; default: 6 |
-H <BOOL> --human-readable-time <BOOL> |
Write time values as hour:minute:second or day:hour:minute:second rather than seconds; default: false |
--alternatives-output <FILE> | Write generated route alternatives to FILE |
--intermodal-network-output <FILE> | Write edge splits and connectivity to FILE |
--intermodal-weight-output <FILE> | Write intermodal edges with lengths and travel times to FILE |
--write-trips <BOOL> | Write trips instead of vehicles (for validating trip input); default: false |
--write-trips.geo <BOOL> | Write trips with geo-coordinates; default: false |
--write-trips.junctions <BOOL> | Write trips with fromJunction and toJunction; default: false |
--write-costs <BOOL> | Include the cost attribute in route output; default: false |
--exit-times <BOOL> | Write exit times (weights) for each edge; default: false |
--route-length <BOOL> | Include total route length in the output; default: false |
Processing#
Option | Description |
---|---|
--max-alternatives <INT> | Prune the number of alternatives to INT; default: 5 |
--with-taz <BOOL> | Use origin and destination zones (districts) for in- and output; default: false |
--unsorted-input <BOOL> | Assume input is unsorted; default: false |
-s <TIME> --route-steps <TIME> |
Load routes for the next number of seconds ahead; default: 200 |
--no-internal-links <BOOL> | Disable (junction) internal links; default: false |
--randomize-flows <BOOL> | generate random departure times for flow input; default: false |
--remove-loops <BOOL> | Remove loops within the route; Remove turnarounds at start and end of the route; default: false |
--repair <BOOL> | Tries to correct a false route; default: false |
--repair.from <BOOL> | Tries to correct an invalid starting edge by using the first usable edge instead; default: false |
--repair.to <BOOL> | Tries to correct an invalid destination edge by using the last usable edge instead; default: false |
--mapmatch.distance <FLOAT> | Maximum distance when mapping input coordinates (fromXY etc.) to the road network; default: 100 |
--mapmatch.junctions <BOOL> | Match positions to junctions instead of edges; default: false |
--bulk-routing <BOOL> | Aggregate routing queries with the same origin; default: false |
--routing-threads <INT> | The number of parallel execution threads used for routing; default: 0 |
--routing-algorithm <STRING> | Select among routing algorithms ['dijkstra', 'astar', 'CH', 'CHWrapper']; default: dijkstra |
--restriction-params <STRING[ ]> | Comma separated list of param keys to compare for additional restrictions |
--weights.interpolate <BOOL> | Interpolate edge weights at interval boundaries; default: false |
--weights.expand <BOOL> | Expand the end of the last loaded weight interval to infinity; default: false |
--weights.minor-penalty <FLOAT> | Apply the given time penalty when computing routing costs for minor-link internal lanes; default: 1.5 |
--weights.tls-penalty <FLOAT> | Apply the given time penalty when computing routing costs across a traffic light; default: 0 |
--weights.random-factor <FLOAT> | Edge weights for routing are dynamically disturbed by a random factor drawn uniformly from [1,FLOAT); default: 1 |
--weight-period <TIME> | Aggregation period for the given weight files; triggers rebuilding of Contraction Hierarchy; default: 3600 |
--weights.priority-factor <FLOAT> | Consider edge priorities in addition to travel times, weighted by factor; default: 0 |
--astar.all-distances <FILE> | Initialize lookup table for astar from the given file (generated by marouter --all-pairs-output) |
--astar.landmark-distances <FILE> | Initialize lookup table for astar ALT-variant from the given file |
--astar.save-landmark-distances <FILE> | Save lookup table for astar ALT-variant to the given file |
--gawron.beta <FLOAT> | Use FLOAT as Gawron's beta; default: 0.9 |
--gawron.a <FLOAT> | Use FLOAT as Gawron's a; default: 0.5 |
--keep-all-routes <BOOL> | Save routes with near zero probability; default: false |
--skip-new-routes <BOOL> | Only reuse routes from input, do not calculate new ones; default: false |
--keep-route-probability <FLOAT> | The probability of keeping the old route; default: 0 |
--ptline-routing <BOOL> | Route all public transport input; default: false |
--route-choice-method <STRING> | Choose a route choice method: gawron, logit, or lohse; default: gawron |
--logit <BOOL> | Use c-logit model (deprecated in favor of --route-choice-method logit); default: false |
--logit.beta <FLOAT> | Use FLOAT as logit's beta; default: -1 |
--logit.gamma <FLOAT> | Use FLOAT as logit's gamma; default: 1 |
--logit.theta <FLOAT> | Use FLOAT as logit's theta (negative values mean auto-estimation); default: -1 |
--persontrip.walkfactor <FLOAT> | Use FLOAT as a factor on pedestrian maximum speed during intermodal routing; default: 0.75 |
--persontrip.walk-opposite-factor <FLOAT> | Use FLOAT as a factor on walking speed against vehicle traffic direction; default: 1 |
--persontrip.transfer.car-walk <STRING[ ]> | Where are mode changes from car to walking allowed (possible values: 'parkingAreas', 'ptStops', 'allJunctions' and combinations); default: parkingAreas |
--persontrip.transfer.taxi-walk <STRING[ ]> | Where taxis can drop off customers ('allJunctions, 'ptStops') |
--persontrip.transfer.walk-taxi <STRING[ ]> | Where taxis can pick up customers ('allJunctions, 'ptStops') |
--persontrip.taxi.waiting-time <TIME> | Estimated time for taxi pickup; default: 300 |
--railway.max-train-length <FLOAT> | Use FLOAT as a maximum train length when initializing the railway router; default: 1000 |
Defaults#
Option | Description |
---|---|
--departlane <STRING> | Assigns a default depart lane |
--departpos <STRING> | Assigns a default depart position |
--departspeed <STRING> | Assigns a default depart speed |
--arrivallane <STRING> | Assigns a default arrival lane |
--arrivalpos <STRING> | Assigns a default arrival position |
--arrivalspeed <STRING> | Assigns a default arrival speed |
--defaults-override <BOOL> | Defaults will override given values; default: false |
Time#
Option | Description |
---|---|
-b <TIME> --begin <TIME> |
Defines the begin time; Previous trips will be discarded; default: 0 |
-e <TIME> --end <TIME> |
Defines the end time; Later trips will be discarded; Defaults to the maximum time that SUMO can represent; default: -1 |
Report#
All applications of the SUMO-suite handle most of the reporting options the same way. These options are discussed at Basics/Using the Command Line Applications#Reporting Options.
Option | Description |
---|---|
-v <BOOL> --verbose <BOOL> |
Switches to verbose output; default: false |
--print-options <BOOL> | Prints option values before processing; default: false |
-? <BOOL> --help <BOOL> |
Prints this screen or selected topics; default: false |
-V <BOOL> --version <BOOL> |
Prints the current version; default: false |
-X <STRING> --xml-validation <STRING> |
Set schema validation scheme of XML inputs ("never", "local", "auto" or "always"); default: local |
--xml-validation.net <STRING> | Set schema validation scheme of SUMO network inputs ("never", "local", "auto" or "always"); default: never |
--xml-validation.routes <STRING> | Set schema validation scheme of SUMO route inputs ("never", "local", "auto" or "always"); default: local |
-W <BOOL> --no-warnings <BOOL> |
Disables output of warnings; default: false |
--aggregate-warnings <INT> | Aggregate warnings of the same type whenever more than INT occur; default: -1 |
-l <FILE> --log <FILE> |
Writes all messages to FILE (implies verbose) |
--message-log <FILE> | Writes all non-error messages to FILE (implies verbose) |
--error-log <FILE> | Writes all warnings and errors to FILE |
--log.timestamps <BOOL> | Writes timestamps in front of all messages; default: false |
--log.processid <BOOL> | Writes process ID in front of all messages; default: false |
--language <STRING> | Language to use in messages; default: C |
--ignore-errors <BOOL> | Continue if a route could not be build; default: false |
--stats-period <INT> | Defines how often statistics shall be printed; default: -1 |
--no-step-log <BOOL> | Disable console output of route parsing step; default: false |
Random Number#
All applications of the SUMO-suite handle randomisation options the same way. These options are discussed at Basics/Using the Command Line Applications#Random Number Options.
Option | Description |
---|---|
--random <BOOL> | Initialises the random number generator with the current system time; default: false |
--seed <INT> | Initialises the random number generator with the given value; default: 23423 |