Signs - Overview
A Sign is a display device that is capable of displaying variable messages to a motorist or pedestrian. The
messages may simply be fixed strings such as SPACES or CLOSED, or directional arrows, or free text
variable messages allowing any text string to be displayed.
Signs use different techniques to display variable messages, they can be of the rotating prism type, where a
fixed number of faces can be selected to show different messages, or matrix signs, where the characters in
the message are made up from a matrix of dots which can be changed to show different messages.
SIESPACE also supports signs that are owned by another remote system - i.e. a UTC. More
about sign
types...
The flexibility and configuribility of the system allows signs of different types to be used with various
communication mechanisms. The communication systems used are, direct via a Radio Modem, PSTN
Modem, Leased Line, or via a remote system such as a UTC System.
The system needs to be configured in order to operate with the specific combination of sign and
communication system.
The sign can be controlled in four ways:
1. by the output of a parking zone.
2. by a remote system, such as a UTC or ITMC.
3. by the operator.
4. by a scheduled command.
A sign can be added to the system by means of the user interface (see Equipment Definition button).
Regardless of their type and mechanism for communication, each sign in SIESPACE provides a set of
common functions which the operator can use to control the sign, view its status, and change its
configuration.
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