I want to extract road network data from OSM for a small city.
From where can I get the lane information of any road in OSM.
I tried exporting the data in the OSM XML format and there was no lane fields in that file.
Simple answer: If no contributor has uploaded any information regarding lanes of a road, you will find none.
You can off-course look for aerial imagery and add the information yourself. But keep in mind that information from Google sources is not allowed to be uploaded into the OSM database.