Abstract: This invention provides a system and method for mapping parameters of a queue of a traffic congestion, for example, a road congestion. Mapping of the road congestion may include determination of an average length of the road congestion over a time interval, motion rate in the road congestion and average arrival rate to the road congestion. These parameters, in turn, may be used to determine an expected delay in traveling throughout the road congestion as well as trends, i.e., changes with time, in the road congestion, using special radio systems and also existing radio networks such as Public Land Mobile Networks (PLMN) and Private/Public Data Networks (PDN). Examples of PLMN are GSM, IS-54, IS-136, PCS-1900, IS-95, GPRS and EDGE for GSM, WCDMA, cdma 2000, and others. Examples of PDN are Mobitex, CDPD and others.