Wavetronix Command DataView (CMD-DV) - User Guide Bedienungsanleitung PDF herunterladen (Seite 30)

CHAPTER 3  STATIONS PAGE 29

To edit an existing station group, select it from the Station Groups list, edit the desired elds

and click Update Group.

To remove existing station groups, select them from the Station Groups list and click Re-

move Selected Groups. Removing a station group has no eect on any stations that origi-

nally belonged to that group.

Manage stations in station groups through the Station Groups menu, accessed by clicking

on Station Groups. To add stations to a group, select the desired stations from the main

Stations page, then select the station group from the drop-down list and click Add Station

to Group. Remove stations from a group in the same way. Select Clear All Station Groups

to remove all stations from all station groups.

Factor Groups

Factor groups allow stations that usually have similar seasonal trac patterns to be grouped

together for more convenient data analysis. e purpose of the seasonal adjustment factor

group is to eliminate seasonal bias for annual average daily trac (AADT) calculations for

temporary count stations. Monthly factors are calculated from permanent count stations.

e average daily count for a temporary count station is multiplied by the group’s factor for

that month, resulting in an AADT value without a seasonal bias.

Note

Stations are not required to belong to a factor group; however, a station may belong

to only one factor group at a time.

Figure 3.10 – Factor Groups Tab

 Factor Groups Tab – Existing factor groups will be displayed in the tree on the le. If

stations have already been assigned to a factor group, they will be displayed as child

nodes under the factor group name. Unlike station groups, stations may belong to only

one factor group.

To create a factor group, enter a name into the Factor Group Name eld. Factor Group

names must be unique, contain a maximum of 25 characters, and contain only alpha-

numeric characters, dashes, spaces, or underscores. ere is an optional Description

eld for the factor group. Click Create Factor Group when nished.

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Wavetronix Command DataView (CMD-DV) - User Guide Bedienungsanleitung Seite 30