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| Hand-held Data Collectors Comparison Chart |
What is the difference between the DB-400 and TDC-12?
The DB-400 only does Standard Turning Movement studies. It has 16 movements keys for recording turning
movements. It also has two additional 'Bank' keys which allow you to classify up to three groups of vehicles
(cars, light trucks, heavy trucks) while recording turning movements.
The TDC-12 has the same capabilities as the DB-400, but will also do Enhanced Turning Movement studies
where up to 14 separate groups of vehicles can be classified while recording turning movements. In addition, it
can collect data for classification, multi-direction gap, spot speed, signalized intersection delay, stop sign delay,
saturation flow rate and time-stamp studies.
Both the DB-400 and TDC-12 download to our PETRAPro software.
The DB-400 only does Standard Turning Movement studies. It has 16 movements keys for recording turning
movements. It also has two additional 'Bank' keys which allow you to classify up to three groups of vehicles
(cars, light trucks, heavy trucks) while recording turning movements.
The TDC-12 has the same capabilities as the DB-400, but will also do Enhanced Turning Movement studies
where up to 14 separate groups of vehicles can be classified while recording turning movements. In addition, it
can collect data for classification, multi-direction gap, spot speed, signalized intersection delay, stop sign delay,
saturation flow rate and time-stamp studies.
Both the DB-400 and TDC-12 download to our PETRAPro software.
| Real-time clock |
| Enhanced Turning Movement Studies (Up to 14 classes) |
| RS-232 Download Port |
| Uses 4 AA Batteries |
| Maximum 32K Memory |
| Maximum 128K Memory |
| Backlit Display |
| Downloads to PETRAPro |
| Downloads to PC-Travel |
| Standard Turning Movement Studies (Up to 3 classes) |
| Classification Studies |
| Multi-direction Gap Studies |
| Signalized Intersection Delay Studies |
| Stop Sign Delay Studies |
| Spot Speed Studies |
| Saturation Flow Rate Studies |
| Raw data Studies |
| TDC-12 |
| DB-400 |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| YES |
| Questions? Contact us and our sales staff will be happy to assist you. |