Ultra Start 15xx Manual de usuario descargar pdf (Pagina 51)

5-5

There are two choices:

• Scheme-F – Thirteen class federal standard

• User-Def – User Deﬁned classiﬁcation of up to 16 classes.

If you choose Scheme-F you are taken directly to the screen for selecting

the number of directions to record. This screen is described in the Select

Number of Directions section on the next page.

If you choose User-Def, then

you will see the screen shown

here.

You are prompted to enter the

highest key that you will use

during the study. This is the number of different classes that you have

deﬁned for the study, without regard to the number of directions you

are counting. You can have up to 48 different classes. Press the highest

key you would use (using the BANK keys as necessary).

For example, if your class scheme uses only 5 classes of vehicles, press

the number 5. If, however, you want to do a detailed class study of a

parking lot, with 40 different classes of vehicles, press BANK2 & 8.

This tells the TDC Ultra to use the 16 primary keys, the 16 secondary

keys (BANK1) and the ﬁrst 8 tertiary keys (BANK2). 16+16+8=40.

If you select to use more than 16 classes (and therefore pressed one of

the Bank keys) you can only do one direction of data collection at a

time. As a result, you’ll be taken directly to the Interval Length selection

screen, described later.

If, however, your class scheme has less than 16 classes (and therefore

you didn’t press one of the Bank keys) you can choose to collected

more than one direction of data at one time. The procedure for doing

this is described in the next section.

Press highest key

value to be used...

Chapter 5 — Classiﬁcation Studies

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Ultra Start 15xx Manual de usuario Pagina 51