Sitraffic Cosmos
The strategy module for the
Sitraffic Conduct+ motorway control center
www.siemens.com/mobility
Sitraffic Cosmos
provides a range
of easy-to-use
tools, enabling
the rapid definition
or modification of
reaction policies
online
Sitraffic Cosmos: Every stimulus is answered by a clearly defined reaction
Stimuli
Change
of data point
Operator
action
Environmental measurements
Traffic
measurements
Errors/
failures of the
system
Time
Digital
contacts
Results from
analysis
and forecast
Strategies/Policies/Response plans
IF
condition 1
AND/OR
condition 2
THEN
action 1
AND
action 2
Reactions
Switch on
CCTV camera
2
Set alarm
Request for
user action
Request for
sigual pattern
or strategy
Digital
contacts
Send
e-mail/SMS
Logging
The right reaction
to any situation – based on
clear rules and aligned with
the overall control strategy
In the ideal case, the flow of traffic
on the motorway is smooth and constant,
the vehicles travel at an adequate
distance from each other, average speeds
and travel times keep within the normal
range, and there is no risk from rain,
fog or, worst of all, ice.
As this ideal case is extremely rare,
there is the motorway management and
control system Sitraffic® Conduct+. For
any situation, the system generates the
adequate reaction, from speed limits and
overtaking bans to messages warning
the drivers of black ice, fog, aquaplaning
or other hazards. Roadside sensors and
detectors collect the necessary traffic
information and send it automatically to
the system. The strategy module Sitraffic
Cosmos then “tells” Conduct+ what
to do.
Easy online definition
of reaction policies and response plans
Whenever an incident occurs or the
traffic situation becomes potentially
dangerous, a reaction of the system is
required. Sitraffic Cosmos provides the
user with a complete range of tools
for the online definition of an adequate
reaction to any event. These reaction
policies may be global response patterns
valid for all defined detector/actor combinations of the system, for example
the activation of a speed limit on a sign
gantry whenever the corresponding
detector has measured a certain traffic
volume level. Or the user can define
individual reactions applicable only to
a specific situation, for instance sending
a warning to an individual truck driver
whose truck has triggered the overheight
detection system.
Key features of Sitraffic Cosmos:
Sitraffic Cosmos can operate with a
wide range of different types of
policies:
– general policies
(IF x THEN always y)
– time-dependent policies
(e.g. from 6:30 to 9:00 a.m.)
– specific policies
(individual reactions)
– Boolean policies (verification of the
truth-value of data points)
– numerical policies (verification of the
actual value of data points)
– response plans
(complex IF > THEN reaction chains)
Policies related to special areas can be
clustered
Individual policies as well as entire
policy clusters can be set to active or
inactive with a single command
The user can define response plans in
the form of flow charts
Sitraffic Cosmos
helps define the
adequate sign gantry
switching action
to react to any traffic
situation
Policies are configured and modified in
online mode
The automatic generation of automatic
control programs saves time and
money
3
For further information
please contact:
Siemens AG
Industry Sector
Mobility Division
Complete Transportation
Intelligent Traffic Systems
Hofmannstrasse 51
81359 Munich
Germany
www.siemens.com/traffic
The information contained in this
brochure comprises only general
descriptions and performance features
of products and systems, which may
not always apply exactly as described
in every realized application, or which
may be subject to change due to further development of the products.
Performance features are only to be
considered binding if they have been
explicitly agreed in the contract.
Siemens AG
© Siemens AG 2010
All rights reserved
Sitraffic is a registered trademark of Siemens AG
www.siemens.com/mobility
Order No. E10003-A800-V102-V1-7600
Printed in Germany
Dispo No. 22300 K No. 4652
DEI 25/26024 313672 PA 02103.
Subject to change without notice