CGS Road WeatherInformation SystemOptimization of road winter maintenance

Weather affects all modes of transportation.

Road Weather Information System (RWIS)

technology provides vital information on pavement

and weather conditions needed for roadway

maintenance operations.

RWIS technology is typically used for monitoring

snow and ice, but it can also be used for high

winds, flooding, or visibility.

RWIS enables maintenance and operations

personnel to monitor changing weather conditions

in real time and make informed and timely

decisions.

That

is why

Be Responsive!save Lives,save Environment,save Money!

Features of Road Weather Stations (RWS)

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remote monitoring of atmospheric and road (pavement)

weather

embedded and contactless road sensors

full range of atmospheric sensors including air temperature,

wind, dew point, precipitation, visibility detection, etc.

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opened' system supports sensors of different producers.

Features of Road Weather Information

System (RWIS)

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a web-based application offering various displays of current

weather conditions at RWS locations,

displays of the archived data and the metadata on stations

and sensors,

opened' system supports RWSs of different producers,

custom-tailored solution,

triggering of alarms,

high tech and high resolution (time and spatial) road

weather forecasts supports maintenance operations,

integration of nowcasting products of meteo services,

integrates with other ITSs.

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Who benefit from using CGS RWIS?can

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Road maintenance services

Traffic managers

Research organisations

Drivers

, Airport and Railways can

significantly reduce maitenance costs, improve safety and

responsiveness, and reduce environmental pollution.

can take better deceisions with help of

CGS RWIS.

can use historical data for analysis.

will be safer on the roads and have up to date road

information available.

Instalation of an embeded road sensor (Foto: CGS plus d.o.o.)

Detailed overview of events at a chosen Road Weather Station. (DARS d.d. - RWIS)

Road maintenance works during winter 2010 in Slovenia (Foto: CGS plus d.o.o.)

RWIS and road weather forecast

The RWIS can be equipped with a reliable energy-balance

model for forecasting the temperature and road surface

conditions (e.g. dry, moist, wet, frost, ice, snow) with high

time and spatial resolution (1km). The users have access to a

12-hour point forecast, which is updated every hour.

Nowcasting products of meteo services are integrated.

Description of CGS RWIS

Road weather stations (RWS)

RWSs are equipped with embedded or contactless road sensors, meteorological sensors, and with digital cameras. Most common

measurements on RWS are: road temperature (on surface and in different depth), thickness of water film, salt concentration,

freezing point temperature, road condition, air temperature and humidity, dew point, air pressure, amount and type of precipitation,

visibility, wind speed and direction. The measurements are stored in the station's logger.

Road weather information system (RWIS)

From the RWS logger, the measurements are transferred by

different telecommunications technologies to the central

database of the road weather information system (RWIS),

which is a web-based application offering various displays of

current measurements at RWS locations, displays of the

archived data and the metadata on stations and sensors. The

application can also trigger alarms. 'Opened' system supports

RWSs of different producers and is custom-designed.

Plans for the future?

Why do customers decide for CGS RWIS?

Key Projects:

Key Publications:

In the future, our system will offer also a forecast for road

sections and modules for management of resources (means of

transport, spreading materials, available human resources) and

it will thus become an integrated maintenance decision

support system (MDSS).

CGS RWIS is 'opened' system which supports RWSs of different

producers. It's custom-tailored solution. High tech and high

resolution (time and spatial) road weather forecast supports

maintenance operations. CGS RWIS is compatible with

nowcasting products of meteo services.

Next Steps in Forecasting Road Surface Temperature and

Developing MDSS. ISEP, Ljubljana, 2011.

Integrated Road Weather Information Systems in Slovenia.

SIRWEC, Quebec, Canada, 2010.

Road Weather Information Systems (RWIS) in Slovenia. CETRA

2010, Opatija, Croatia, 2010.

A blueprint of the road weather information system. 10th

Road and Transportation Congress, Portorož, 2010.

Road Weather Forecast in Winter Maintenance Service. ISEP,

Ljubljana, 2010.

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Development of RWIS DRSC, Slovenia (2004-2011);

Development of RWIS DARS, Slovenia (2007-2011);

Development of road weather forecast (Ministry of higher

education, science and technology) (2009);

Forecast for road sections (JAPTI – Public Agency of the

Republic of Slovenia for Entrepreneurship and Foreign

Investments) (2010);

INCA Central Europe - Integrated nowcasting system for

the Central European area (program Central Europe) (2010-

2013).

CGS plus d.o.o.Innovative IT and Environmentaltechnologies

Brnčičeva ulica 13SI-1000 Ljubljana, Slovenia

Phone: +386 1 530 11 00Fax: +386 1 530 11 32Internet: www.cgsplus.sie-mail: info@cgsplus.si

Address:

Contact:

Installed Road Weather Station at mountain pass Predel, Slovenia(Foto: CGS plus d.o.o.)