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viasis 3003 user manual
via
traffic
controlling
gmbh
1 The concept of visual speed indication
The visual speed indication and thereby the attempt to influence the driver's speed is quite a
new field in the common road and traffic technology, although the well known traffic lights are
established since decades. Nowadays public authorities start to install luminary speed indication
signs above highways for the same purpose and additionally to manage the traffic flow. Besides
avoiding traffic jams, these systems also shall decrease the drivers speed in order to reduce the
rate of accidents and the heaviness of their consequences.
Our system of a mobile, autonomous and numerical speed indication display fulfils this aim
especially in communal and urban areas, speed limit zones, living areas and in front of schools
and nursery schools.
If we look to the effects of such a speed display, we can state three main effects:
The driver gets the speed of his car publicly displayed and realizes his „over speeding“.
Therefore the most drivers will be set under psychological pressure and reduce their actual
speed.
The inhabitants of living areas with low speed zones can prove the driving speed of passing
vehicles objectively and as far as local source and target traffic is concerned speak with well
known „fast drivers“ personally.
The communal authorities, often quite helpless with complaints of angry citizens about over
speeding, get an appropriate tool to react. With this tool they delegate in a psychological way
the control function to the concerned citizens.
The police are and was never able to observe the mentioned low speed zones and living areas
in a repressive manner effectively and the expenses for repressive supervision there are not
covered by fines for over speeding drivers. By the way, whether repressive supervision of
speed limitations in living areas is politically suitable is another question.
Up to now the only possibilities of local administrations are road reconstructions to lower
drivers speeding. But such steps are quite costly and under the aspect of the economic situa-
tion of the communities, with low funds not longer practicable.
The systems for visual speed indication however make sense in a wide area covering action.
This wide area covering action just can be run by easy installable and transportable units,
working completely independent for an appropriate time.
Since 1994 via traffic controlling has delivered the speed measurement systems viasis with in-
tegrated display. The viasis 3003 is an actual version of this system with low energy
consumption, integrated battery buffered memory for speed and time data, serial data interface
and a couple of different operating modes.
The possibility not only to measure and to display speed data, but also to collect and herewith
to analyze the collected values statistically grants a control of the effectiveness of the viasis
systems in a certain traffic situation.
In common speed data can be collected (with or without ‘publicly’ displayed speed on the
board) and later on processed statistically permitting the system user profound statements
about the car drivers speeding behavior on a certain road. This makes decisions for or against
further measures, like road reconstruction, repressive speed controls and so on, much easier.
