Raw Travel Time
The /traveltime/api/segmentcalc endpoint returns all the individual (non-aggregated) travel time calculations in one ore more segments (each of which is defined as a route between a set of starting coordinates and a set of ending coordinates). The segment or segments returned are specified by passing the segment_id parameter, which takes an integer. The valid segment IDs for this endpoint can be found in the data returned by a call to the seginventory endpoint.
Due to the quantity of data available, API calls to this endpoint must be constrained within a date range through the use of the start_date and end_date parameters in order to reliably return any data.
This endpoint returns data in JSON format by default. An overview of the data returned by this endpoint, including attribute descriptions, can be found on the Downloads page, in the Raw Travel Time section of the Travel Time Data dropdown menu on the downloads page.
Parameters
Segment Calc takes the following parameters:
| Name | Required | Description | Type | Example |
|---|---|---|---|---|
| start_date | Yes | Beginning Date for Data Query in YYYY-MM-DD | Date formatted String | 2019-07-10 |
| end_date | Yes | End Date for Data Query in YYYY-MM-DD Format | Date formatted String | 2019-07-16 |
| segment_id | No | The ID value of a segment. | Integer | 2264 |
| format | No | File format. Acceptable values are CSV or JSON | String | CSV |
Example Request
https://new.portal.its.pdx.edu/traveltime/api/segmentcalc/?start_date=2019-07-10&end_date=2019-07-16&segment_id=2264&format=csv
Example Response (CSV)
below_min_filter,calc_confidence_interval,calc_variance,exceeded_max_filter,segment_calc_time,segment_id,segment_travel_time,std_deviation_calc_samples_removed,std_deviation_filter_value
0,47.62680841791146,1910.7777233115469,0,2019-07-15T08:10:13.870000-07:00,2264,250,3,625.985307791092
,,,,2019-07-12T02:43:56.443000-07:00,2264,,,
0,27.739097824477074,691.0682950191571,0,2019-07-14T17:26:19.290000-07:00,2264,201,11,292.14712922602826
,,,,2019-07-14T05:04:04.793000-07:00,2264,,,
0,91.84276125908704,7419.019478573576,0,2019-07-12T13:06:05.013000-07:00,2264,431,13,606.9405957187217
0,15.783286044384685,211.38965221124943,0,2019-07-14T19:19:17.543000-07:00,2264,179,17,344.9302539780056
0,63.20044260842664,2894.638962569994,0,2019-07-15T08:02:13.523000-07:00,2264,226,8,453.90285676718827
0,137.05280600966222,12216.124908424914,0,2019-07-15T05:44:09.357000-07:00,2264,258,15,1043.6730441916566
0,83.25856385808284,5495.865588090551,0,2019-07-14T11:27:12.090000-07:00,2264,218,8,392.93832389982845
0,8.267695402107005,63.50800894854586,0,2019-07-14T12:13:12.767000-07:00,2264,198,21,283.2372606427088
,,,,2019-07-10T01:29:55.590000-07:00,2264,,,
0,131.00863258199135,12757.024089635885,0,2019-07-10T09:42:05.257000-07:00,2264,548,1,919.07907964233
0,37.14847914988638,1341.9923240241667,0,2019-07-10T14:44:10.550000-07:00,2264,237,11,624.2426675933058
0,62.78188228464351,3222.6333564654096,0,2019-07-15T07:45:13.357000-07:00,2264,241,4,507.1922615249074
6,838.6053438099856,313628.88184663624,0,2019-07-14T08:29:10.347000-07:00,2264,513,18,1494.1113118110252
0,134.99541910594726,10384.705685618726,0,2019-07-10T06:03:02.050000-07:00,2264,243,6,741.0110109265383
14,404.9355648242871,21328.457142857143,0,2019-07-14T07:26:07.273000-07:00,2264,1276,39,1650.9809597497995
,,,,2019-07-10T02:07:56.993000-07:00,2264,,,
0,252.93178070425998,22982.808529945556,0,2019-07-10T15:44:10.437000-07:00,2264,687,10,868.6713802022657
Last Updated: 2022-10-13