Traffic - Get Traffic Flow Tile

Traffic Flow Tile

Applies to: S0 and S1 pricing tiers.

The Azure Flow Tile API serves 256 x 256 pixel tiles showing traffic flow. All tiles use the same grid system. Because the traffic tiles use transparent images, they can be layered on top of map tiles to create a compound display. The Flow tiles use colors to indicate either the speed of traffic on different road segments, or the difference between that speed and the free-flow speed on the road segment in question.

GET https://atlas.microsoft.com/traffic/flow/tile/{format}?api-version=1.0&style={style}&zoom={zoom}&x={x}&y={y}
GET https://atlas.microsoft.com/traffic/flow/tile/{format}?subscription-key={subscription-key}&api-version=1.0&style={style}&zoom={zoom}&x={x}&y={y}&thickness={thickness}

URI Parameters

Name In Required Type Description
format
path True

Desired format of the response. Possible values are png & pbf.

subscription-key
query
  • string

One of the Azure Maps keys provided from an Azure Map Account. Refer to the subscription-key security definition.

api-version
query True
  • string

Version number of Azure Maps API. Current version is 1.0

style
query True

The style to be used to render the tile.

  • Absolute which returns colors reflecting the absolute speed measured.
  • Relative to which returns the speed relative to free-flow.
  • Relative-delay displays when relative speeds are different from the free-flow speeds.
zoom
query True
  • integer

Zoom level for the desired tile. For raster tiles, value must be in the range: 0-22 (inclusive). For vector tiles, value must be in the range: 0-22 (inclusive). Please see Zoom Levels and Tile Grid for details.

x
query True
  • integer

X coordinate of the tile on zoom grid. Value must be in the range [0, 2zoom -1].

Please see Zoom Levels and Tile Grid for details.

y
query True
  • integer

Y coordinate of the tile on zoom grid. Value must be in the range [0, 2zoom -1].

Please see Zoom Levels and Tile Grid for details.

thickness
query
  • integer

The value of the width of the line representing traffic. This value is a multiplier and the accepted values range from 1 - 20. The default value is 10. This parameter is not valid when format is pbf.

Request Header

Name Required Type Description
x-ms-client-id
  • string

Specifies which account is intended for usage in conjunction with the Azure AD security model. It represents a unique ID for the Azure Maps account and can be retrieved from Azure Maps management plane Account API. To use Azure AD security in Azure Maps see the following articles for guidance.

Responses

Name Type Description
200 OK
  • string

OK

400 Bad Request

Bad request: one or more parameters were incorrectly specified or are mutually exclusive.

401 Unauthorized

Access denied due to invalid subscription key or invalid Azure Active Directory bearer token. Make sure to provide a valid key for an active Azure subscription and Maps resource. Otherwise, verify the WWW-Authenticate header for error code and description of the provided AAD bearer token.

Headers

  • WWW-Authenticate: string
403 Forbidden

Permission, capacity, or authentication issues.

404 Not Found

Not Found: the requested resource could not be found, but it may be available again in the future.

500 Internal Server Error

An error occurred while processing the request. Please try again later.

Security

azure_auth

These are the Azure Active Directory OAuth2 Flows. When paired with Azure Role Based Access control it can be used to control access to Azure Maps REST APIs. Azure Role based access controls are used to designate access to one or more Azure Maps resource account or sub-resources. Any user, group, or service principal can be granted access via a built in role or a custom role composed of one or more permissions to Azure Maps REST APIs.

To implement scenarios we recommend viewing authentication concepts. In summary, this security definition provides a solution for modeling application(s) via objects capable of access control on specific APIs and scopes.

Note

  • This security definition requires the use of the x-ms-client-id header to indicate which Azure Maps resource the application is requesting access to. This can be acquired from the Maps management API.
  • The Authorization URL is specific to the Azure public cloud instance. Sovereign clouds have unique Authorization URLs and Azure Active directory configurations.
  • The Azure role based access control is configured from the Azure management plane via Azure portal, Powershell, CLI, Azure SDKs, or REST APIs.
  • Usage of the Azure Maps Web SDK allows for configuration based setup of an application for multiple use cases.
  • Currently Azure Active Directory v1.0 tokens are supported.

Type: oauth2
Flow: implicit
Authorization URL: https://login.microsoftonline.com/common/oauth2/authorize

subscription-key

This is a shared key which is provisioned when creating an Azure Maps resource through the Azure management plane via Azure portal, Powershell, CLI, Azure SDKs, or REST APIs. With this key, any application is authorized to access all REST APIs. In other words, these can currently be treated as master keys to the account which they are issued for. For publicly exposed applications our recommendation is to use server to server access of Azure Maps REST APIs where this key can be securely stored.

Type: apiKey
In: query

Examples

GetTrafficFlowTile

Sample Request

GET https://atlas.microsoft.com/traffic/flow/tile/png?subscription-key=[subscription-key]&api-version=1.0&style=absolute&zoom=12&x=2044&y=1360

Sample Response

"binary string image"
{
  "error": {
    "code": "400 BadRequest",
    "message": "Bad request: one or more parameters were incorrectly specified or are mutually exclusive."
  }
}
{
  "error": {
    "code": "401 Unauthorized",
    "message": "Access denied due to invalid subscription key. Make sure to provide a valid key for an active subscription."
  }
}
{
  "error": {
    "code": "403 Forbidden",
    "message": "Permission, capacity, or authentication issues."
  }
}
{
  "error": {
    "code": "404 NotFound",
    "message": "Not Found: the requested resource could not be found, but it may be available again in the future."
  }
}
{
  "error": {
    "code": "500 InternalServerError",
    "message": "An error occurred while processing the request. Please try again later."
  }
}

Definitions

Error

This object is returned when an error occurs in the Maps API

ErrorResponse

This response object is returned when an error occurs in the Maps API

TileFormat

Desired format of the response. Possible values are png & pbf.

TrafficFlowTileStyle

The style to be used to render the tile.

  • Absolute which returns colors reflecting the absolute speed measured.
  • Relative to which returns the speed relative to free-flow.
  • Relative-delay displays when relative speeds are different from the free-flow speeds.

Error

This object is returned when an error occurs in the Maps API

Name Type Description
code
  • string

The HTTP status code.

message
  • string

If available, a human readable description of the error.

ErrorResponse

This response object is returned when an error occurs in the Maps API

Name Type Description
error

This object is returned when an error occurs in the Maps API

TileFormat

Desired format of the response. Possible values are png & pbf.

Name Type Description
pbf
  • string

Vector graphic in the pbf format. Supports zoom levels 0 through 22.

png
  • string

An image in the png format. Supports zoom levels 0 through 18.

TrafficFlowTileStyle

The style to be used to render the tile.

  • Absolute which returns colors reflecting the absolute speed measured.
  • Relative to which returns the speed relative to free-flow.
  • Relative-delay displays when relative speeds are different from the free-flow speeds.
Name Type Description
absolute
  • string

Colors will reflect the absolute speed measured.

reduced-sensitivity
  • string

Displays relative colors but a larger difference from freeflow is required for segments to change the color. This mode only valid when format is png.

relative
  • string

Colors will reflect the speed relative to free-flow.

relative-delay
  • string

Displays relative colors only where they are different from the freeflow speeds.