Traffic Data - Manual

Hand-held Traffic Data Collection with Video Mode Option

Traffic engineering...

... in the palm of your hand

TDC

ULTRA

JAMAR AI PORTAL

JAMAR data collectors are known worldwide as the best, most effective way to manually collect traffic data. The TDC Ultra is the single most powerful hand-held traffic data collector in the world today. With this one recorder, you can save countless hours by electronically collecting many types of traffic data for easy download and analysis with the powerful PETRAPro software.

Turning Movements for up to 14 classes
Turning Movements for Roundabouts
Saturation Flow Rate & Signal Timings
Vehicle Speeds with Classification

Vehicle Classification
Multi-direction Gap
Stop Sign Delays
Signalized Intersection Delays

The TDC ULTRA is a versatile traffic data collection tool and turning movement counter. Not only does it do the most common of all manual traffic data studies - turning movements - it does an additional nine studies. The TDC ULTRA has a USB Port for downloading, the ability to collect Roundabout Movement Data and the ability to record data in Video Mode.

The TDC ULTRA is easy to use, accurate and reliable. It is the easiest way to collect intersection data for quick analysis, saving you time and money.

Video Mode

A popular way to do turning movements and other traffic studies is to video record the location and later count the traffic while watching the video playback. The new Video Mode selection of the TDC-Ultra is designed to let you do this in an efficient manner.

With Video Mode you can now do a count by running the video faster (or slower) than real time. You can also take breaks during your counting without disrupting how the data is stored.

With the Video Mode you can complete a study in a fraction of the time it would take to do it in real time. In addition to standard turning movement studies, the Video Mode of the TDC-Ultra also supports Roundabout, Vehicle Classification and Multi-direction Gap studies.

All studies can be processed with JAMAR’s PETRAPro software.

Turning Movements

As a reliable turning movement counter, the TDC Ultra is designed to make collecting turning movement data easy and accurate. The buttons are arranged to simulate a standard intersection. There are 16 buttons, with 12 normally used for the left, through, and right movements from each of the four approach directions. The additional four buttons are user-defined; they can be used for bicycles, pedestrians, or whatever you want.

Since the TDC Ultra looks like an intersection, doing a count is very intuitive. If a car makes a left turn from an approach, you simply push the button that shows a left turn from that direction. The TDC Ultra keeps track of everything else for you. At the end of every time interval, the data is automatically stored, so there is no need for technicians to take their eyes off the intersection to write down numbers.

While you record turning movements, you also have the option to classify the vehicles recorded in up to three separate classes using the TDC Ultra's 'Bank' buttons. Trucks and other heavy vehicles can be stored separate from passenger vehicles, and percentage breakdowns can be determined.

In addition to the standard 3-class turning movement studies done by the TDC Ultra, you can also do enhanced turning movement studies for up to 14 classes of vehicles. Vehicles can be classified based on the Federal Highway Administration’s standards, or by a user defined scheme of up to 14 classes. This is accomplished by the addition of 14 class buttons at the bottom of the data collector. You also are given several options on how to record the data with these keys.

Multiple studies can be stored in the TDC Ultra turning movement counter. For each study, the unit stores the date and time, the number of intervals used, a site code, and the data. At any convenient time, you can transfer the data to your computer through the USB port to our PETRAPro Software, which allows you to easily read, edit and store the data, as well as print reports, without ever having to manually enter data.

Easy Editing & Data Processing