Traffic API

The Flow Request returns an image of the current traffic for a particular area.

Resource URL

Resource Information

Request Parameters

• key required

  The API Key, which is needed to make requests to MapQuest services.

• mapState required

  A valid map state for this image.

  This parameter must contain the following information:

  • width - width of the image in pixels
  • height - height of the image in pixels
  • center - lat/lng object of the map center
  • scale - map scale

  The scale must be one of the following values:

  Zoom	Scale
  10	433343
  11	216671
  12	108335
  13	54167
  14	27083
  15	13541
  16	6770
  17	3385
  18	1692

  Supply the following query parameters to describe the mapState:

  • mapWidth - width of the image (in pixels)
  • mapHeight - height of the image (in pixels)
  • mapLat - latitude of the map center (in degrees), must be between -90 and 90
  • mapLng - longitude of the map center (in degrees), must be between -180 and 180
  • mapScale - map scale (in points (1/72 of an inch) per pixel), must be one of the following values

  Note: the combination of mapHeight, mapWidth and mapScale parameters must cover an area no more than 1 degree in either direction. An error message will inform you if this is exceeded.

• imageType optional, defaults to gif

  The format of the image. Can be gif or png.

Example Request

Example Response (Flow Image)

The following sample returns a 400x400 pixel image centered on Arlington, VA, with a scale of 108335 (zoom level of 12)