TXDOT Using GPS To Study Travel

Global Positioning System units were installed in some passengers cars today. It's all an effort to study traffic and travel tendencies.
A contractor for TXDOT started installing the GPS as a way to collect data.
Officials say the GPS aren't navigators like you have in a car.
Participants have been notified by letter and is voluntary.
The installation took place at the Holiday Inn Hotel on central freeway.