Methods, systems and apparatuses for of estimating a plurality of locations of an object are disclosed. One method includes receiving wireless signals from a plurality of base stations of a first network, sensing, by the tracking device, motion of the object, sampling, by the tracking device, the received wireless signals at least three times in response to the sensing motion of the object, downloading to the tracking device, characterizations of the wireless signals along a same route of transit, and estimating the plurality of locations of the tracking device based on signal characteristic of the samples of the received wireless signals received from the plurality of plurality of base stations, the information of the plurality of base stations, and predetermined knowledge of a transportation mode that is transporting the object including the characterizations of the wireless signal.