Ultra Start 15xx Bedienungsanleitung PDF herunterladen (Seite 93)

11-5

Chapter 11 — Roundabout Movement Studies

How to do a Roundabout Movement Study

When you are ready to begin a Roundabout Movement study, select Count

from the Main Menu, then select New and then select RA.

You are then prompted to select a site code type and assign a site code.

Refer to chapter 2 for information on selecting a site code.

Interval

Once you have programmed a site code for the study, you are prompted

to choose the interval length that will be used.

You are given the choice of 1, 5, 15, 30, or 60 minute intervals. An In-

terval is the amount of time the TDC Ultra collects data before it stores

the accumulated totals in memory. You are barely aware of intervals

changing when you do a study with the TDC Ultra (it beeps at the end

of each interval to let you know it may be time to go home). The TDC

Ultra automatically keeps track of the time and stores the data at the

end of the interval. You only have to concentrate on collecting the data.

This is one of the major features of the TDC Ultra.

The default value is 15 minutes, as this is the most common interval

length used for Roundabout Movement studies. We recommend that

you use 15 minutes unless you have special requirements.

Press DO once you have selected the interval length you wish to use.

Start Study

After you have selected an

interval to use, you are ready

to start the study. The display

shows the current count num-

ber and the interval number.

In the example shown, this is the ﬁrst count done, and it is at the ﬁrst

interval.

1 5 15 30 60 EXIT

Select interval

duration (minutes).

Press DO to accept

Roundabout

Count: 001 Int: 001

--Any Key to Start--

07:59:37

1 2 ... 88 89 90 91 92 93 94 95 96 97 98 ... 123 124

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Ultra Start 15xx Bedienungsanleitung Seite 93