Traffic flow data XML tags meaning

Question

I am looking for real-time traffic flow data. I found the traffic API that I need: Click here but I really don't know what the values ​​are for these XML tags, such as <FI> <TMC PC="11531" DE="Linden" QD="-" LE="0.8535"/> <CF CN="0.86" FF="69.59" JF="0.17" SP="70.13" TY="TR"/> </FI> I found the meaning of TMC DE PC But I can not find CF CN FF JF SP TY.

Does anyone know these abbreviations?

Thank you very much,

Chuansheng

Answer 1

They are associated with traffic channel information, where the included information is an event identifier, location code, expected duration of the incident, degree of impact and other details.

These TMCs are managed differently depending on the country in which you are interested, and a specialized mapping provider can provide you with access to such information and what a subscription is. It also relates to how you can use TMC depending on the area of ​​interest to receive or provide information from there.

For more information about TMC: http://en.wikipedia.org/wiki/Traffic_message_channel

Full information about him can be found here. Here you can find the documentation:

https://developer.here.com/documentation/download/traffic_nlp/6.0.28.1/Traffic%20API%20v6.0.28.1%20Developer's% 20Guide.pdf

Answer 2

I agree that it is rather hidden, but you can find an explanation for xsd schemes in meta resources . You are most likely interested in the following REST call:

http://traffic.cit.api.here.com/traffic/6.0/xsd/flow.xsd?app_id=YOUR_APP_ID&app_code=YOUR_APP_CODE

Here is the output part explaining what FF means:

 ... <xs:attribute name="FF" type="speed" use="required"> <xs:annotation> <xs:documentation>The free flow speed on this stretch of road.</xs:documentation> </xs:annotation> </xs:attribute> ... 

Answer 3

In general, I would think that the docs developer should have all the information necessary to use the API, not check them, and as the pages do not have another place, I would suggest checking them.

Then, if they are unable to provide information, then offer to contact this support directly.