Method and system for estimating traffic information by using integration of location update events and call events

A method for estimating traffic information by using integration of location update events and call events, executed in a traffic information estimation system, said method comprising:

• using a sample capturing and analyzing device to capture location area update events and call events, and associate location area update (LAU) and call sample data of at least one mobile user, wherein the call sample data at least includes at least one LAU event of said at least one mobile user, and call arrival (CA) or call completion (CC) events of at least one call of the at least one mobile user;
• and
• based on the call sample data, determining, by using a computation device, location information and time information of the at least one LAU event and the CA or CC events of the at least one call, and estimating, by using the computation device, traffic information of one or more designated roads according to said location information and said time information, including the steps of:
• specifying one or more cell groups of the one or more designated roads on at least one mobile network's border;
• locking said one or more cell groups of at least one designated area of the one or more designated roads, and collecting the CA or CC events induced by said at least one mobile user as a possible sample set;
• and
• locking one or more mobile user of each sample in the possible sample set;
• collecting LAU events occurred on the one or more designated roads as a calculable sample set;
• filtering out a valid sample set based on a vehicle speed of a vehicle that a mobile user of each sample in said calculable sample set is in;
• and
• utilizing said valid sample set to estimate the traffic information on the one or more designated roads.