CalculateRoute - Amazon Location Service

CalculateRoute

Calculates a route given the following required parameters: DeparturePosition and DestinationPosition. Requires that you first create a route calculator resource.

By default, a request that doesn't specify a departure time uses the best time of day to travel with the best traffic conditions when calculating the route.

Additional options include:

  • Specifying a departure time using either DepartureTime or DepartNow. This calculates a route based on predictive traffic data at the given time.

    Note

    You can't specify both DepartureTime and DepartNow in a single request. Specifying both parameters returns a validation error.

  • Specifying a travel mode using TravelMode sets the transportation mode used to calculate the routes. This also lets you specify additional route preferences in CarModeOptions if traveling by Car, or TruckModeOptions if traveling by Truck.

    Note

    If you specify walking for the travel mode and your data provider is Esri, the start and destination must be within 40km.

Request Syntax

POST /routes/v0/calculators/CalculatorName/calculate/route HTTP/1.1 Content-type: application/json { "CarModeOptions": { "AvoidFerries": boolean, "AvoidTolls": boolean }, "DepartNow": boolean, "DeparturePosition": [ number ], "DepartureTime": number, "DestinationPosition": [ number ], "DistanceUnit": "string", "IncludeLegGeometry": boolean, "TravelMode": "string", "TruckModeOptions": { "AvoidFerries": boolean, "AvoidTolls": boolean, "Dimensions": { "Height": number, "Length": number, "Unit": "string", "Width": number }, "Weight": { "Total": number, "Unit": "string" } }, "WaypointPositions": [ [ number ] ] }

URI Request Parameters

The request uses the following URI parameters.

CalculatorName

The name of the route calculator resource that you want to use to calculate the route.

Length Constraints: Minimum length of 1. Maximum length of 100.

Pattern: ^[-._\w]+$

Required: Yes

Request Body

The request accepts the following data in JSON format.

CarModeOptions

Specifies route preferences when traveling by Car, such as avoiding routes that use ferries or tolls.

Requirements: TravelMode must be specified as Car.

Type: CalculateRouteCarModeOptions object

Required: No

DepartNow

Sets the time of departure as the current time. Uses the current time to calculate a route. Otherwise, the best time of day to travel with the best traffic conditions is used to calculate the route.

Default Value: false

Valid Values: false | true

Type: Boolean

Required: No

DeparturePosition

The start position for the route. Defined in World Geodetic System (WGS 84) format: [longitude, latitude].

  • For example, [-123.115, 49.285]

Note

If you specify a departure that's not located on a road, Amazon Location moves the position to the nearest road. If Esri is the provider for your route calculator, specifying a route that is longer than 400 km returns a 400 RoutesValidationException error.

Valid Values: [-180 to 180,-90 to 90]

Type: Array of doubles

Array Members: Fixed number of 2 items.

Required: Yes

DepartureTime

Specifies the desired time of departure. Uses the given time to calculate the route. Otherwise, the best time of day to travel with the best traffic conditions is used to calculate the route.

Note

Setting a departure time in the past returns a 400 ValidationException error.

  • In ISO 8601 format: YYYY-MM-DDThh:mm:ss.sssZ. For example, 2020–07-2T12:15:20.000Z+01:00

Type: Timestamp

Required: No

DestinationPosition

The finish position for the route. Defined in World Geodetic System (WGS 84) format: [longitude, latitude].

  • For example, [-122.339, 47.615]

Note

If you specify a destination that's not located on a road, Amazon Location moves the position to the nearest road.

Valid Values: [-180 to 180,-90 to 90]

Type: Array of doubles

Array Members: Fixed number of 2 items.

Required: Yes

DistanceUnit

Set the unit system to specify the distance.

Default Value: Kilometers

Type: String

Valid Values: Kilometers | Miles

Required: No

IncludeLegGeometry

Set to include the geometry details in the result for each path between a pair of positions.

Default Value: false

Valid Values: false | true

Type: Boolean

Required: No

TravelMode

Specifies the mode of transport when calculating a route. Used in estimating the speed of travel and road compatibility. You can choose Car, Truck, or Walking as options for the TravelMode.

The TravelMode you specify also determines how you specify route preferences:

  • If traveling by Car use the CarModeOptions parameter.

  • If traveling by Truck use the TruckModeOptions parameter.

Default Value: Car

Type: String

Valid Values: Car | Truck | Walking

Required: No

TruckModeOptions

Specifies route preferences when traveling by Truck, such as avoiding routes that use ferries or tolls, and truck specifications to consider when choosing an optimal road.

Requirements: TravelMode must be specified as Truck.

Type: CalculateRouteTruckModeOptions object

Required: No

WaypointPositions

Specifies an ordered list of up to 23 intermediate positions to include along a route between the departure position and destination position.

  • For example, from the DeparturePosition [-123.115, 49.285], the route follows the order that the waypoint positions are given [[-122.757, 49.0021],[-122.349, 47.620]]

Note

If you specify a waypoint position that's not located on a road, Amazon Location moves the position to the nearest road.

Specifying more than 23 waypoints returns a 400 ValidationException error.

If Esri is the provider for your route calculator, specifying a route that is longer than 400 km returns a 400 RoutesValidationException error.

Valid Values: [-180 to 180,-90 to 90]

Type: Array of arrays of doubles

Array Members: Minimum number of 0 items. Maximum number of 23 items.

Array Members: Fixed number of 2 items.

Required: No

Response Syntax

HTTP/1.1 200 Content-type: application/json { "Legs": [ { "Distance": number, "DurationSeconds": number, "EndPosition": [ number ], "Geometry": { "LineString": [ [ number ] ] }, "StartPosition": [ number ], "Steps": [ { "Distance": number, "DurationSeconds": number, "EndPosition": [ number ], "GeometryOffset": number, "StartPosition": [ number ] } ] } ], "Summary": { "DataSource": "string", "Distance": number, "DistanceUnit": "string", "DurationSeconds": number, "RouteBBox": [ number ] } }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

Legs

Contains details about each path between a pair of positions included along a route such as: StartPosition, EndPosition, Distance, DurationSeconds, Geometry, and Steps. The number of legs returned corresponds to one fewer than the total number of positions in the request.

For example, a route with a departure position and destination position returns one leg with the positions snapped to a nearby road:

  • The StartPosition is the departure position.

  • The EndPosition is the destination position.

A route with a waypoint between the departure and destination position returns two legs with the positions snapped to a nearby road:

  • Leg 1: The StartPosition is the departure position . The EndPosition is the waypoint positon.

  • Leg 2: The StartPosition is the waypoint position. The EndPosition is the destination position.

Type: Array of Leg objects

Summary

Contains information about the whole route, such as: RouteBBox, DataSource, Distance, DistanceUnit, and DurationSeconds.

Type: CalculateRouteSummary object

Errors

For information about the errors that are common to all actions, see Common Errors.

AccessDeniedException

The request was denied because of insufficient access or permissions. Check with an administrator to verify your permissions.

HTTP Status Code: 403

InternalServerException

The request has failed to process because of an unknown server error, exception, or failure.

HTTP Status Code: 500

ResourceNotFoundException

The resource that you've entered was not found in your AWS account.

HTTP Status Code: 404

ThrottlingException

The request was denied because of request throttling.

HTTP Status Code: 429

ValidationException

The input failed to meet the constraints specified by the AWS service.

HTTP Status Code: 400

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: