[Geocoding] Reverse Geocoding to get road type information

[jiangtao]

Hi all,
I'm a beginner using OSM service. Right now, I have a bunch of vehicle trajectory GPS coordinates with timestamp. I want to attach each GPS point with its corresponding road type, e.g, highway, local street. 
Basically I could do reverse geocoding using Nominatim, while it only replies with street information, without road type information. And parsing the detailed page (detail,php) is not viable since my data volume is huge. 
Do you have any insight of taking care about this kind of issue?
Thanks in advance and looking forward to your reply.
Tao  		 	   		  
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