Road Traffic Technology
ROAD WEATHER STATIONS
ADVANCED ROAD WEATHER INFORMATION SYSTEM
MAINTENANCE DECISION SUPPORT SYSTEM
WINTER MAINTENANCE PERFORMANCE AND COST ANALYSIS
CrossMet
METIS
SSWM
WMi
ROAD
WEATHER
AND WINTER MAINTENANCE
ROAD WEATHER
MOBILE DATA
OVERVIEW CAMERAS
CROSSMET
ROAD WEATHER STATION
WEATHER RADAR
METIS
WEATHER SATELLITE
VMS
A family of devices and systems for monitoring and predicting/nowcasting road
weather. It is a full multi-level solution for intelligent winter road maintenance
management.
SSWM
More effective
winter Maintenance
A complete road weather information system – from weather stations to the dispatcher prediction module – helps to increase safety and at the same time to optimize maintenance costs thanks to the timely and effective treatment of roads in the winter.Safer roadS
To maintain the usability of roads, it is essential to ensure timely and adequate treatment. Thanks to the predictions of the dispatcher module, maintenance is directed to specific locations to treat dangerous situations at the optimal time. This enables maintenance of an even larger area at an optimal condition.
coSt Saving
Targeted winter maintenance, based on current on-line weather station info and a forecasting module, allows for the planning of winter maintenance. Efficient use of resources can then be achieved. CROSS developed an index which evalu-ates the performance of winter mainten-ance and its associated costs.
Road WeatheR
WMi
MetiS
SSWM
CrossMet
Wind measurement
OvervieW camera
atmOspheric
measurements
rOad sensOr
cOntrOl unit and datalOgger
cabinet and pOWer supply
data transmissiOn
precipitatiOn and
visibility
sunshine – net radiatiOn
Road Weather
station
CrossMet
dataloggeR
Control unit for road weather station – an
intelligent datalogger – open platform for data
processing and connecting a wide range of
meteorological sensors.
•
Control unit compatible with third-party sensors – full technology independence•
Firmware upgrade – locally or remotely•
Simple datalogger diagnostics via LED diodes•
Communication via GSM/GPRS, RS 232/485, TCP/IP, emergency spe-cial lines (SOS), Wi-Fi, radio or fiber optic•
Adaptation of device outputs for specific applications (e.g. variable message signs)•
Power supply options – public lighting interrupted power supply, solar panels, wind turbine, or full cell independent power supplyCrossMet Air temperature, humidity, dew point •
Precipitation •
Visibility and present weather •
Road condition sensor •
Wind speed and direction measurement •
Overview camera with night vision •
supported sensors
CrossMet = an open
platform measurement.
Technology independent.
SoftWare solutions
CROSS software products create a comprehensive
system for winter road maintenance: from dispatcher
decision support to feedback and evaluation of the
performance (efficiency) of winter maintenance.
•
Precipitation type•
Precipitation intensity and amount•
Visibility•
Air temperature•
Dew point•
Relative humidity•
Wind speed•
Wind direction•
Visual monitoring of road status•
Visual monitoring of actual weather•
Night vision as add-on•
Road surface temperature•
Subsurface temperature•
Road status•
Freezing point•
Water layer thickness•
Salt concentrationRoad Traffic Technology
67
MetiS core
StationS
caMeraS
radar
MetiS Mobile
StatuS Map
The latest (fourth) generation of METIS brings many
new features. Great emphasis is now placed on the
status map, where a variety of meteorological data
can be displayed to support the spatial weather
perception. New additions are an info panel, and a
real-time view of cloud cover and precipitation.
MetiS
METIS is a unique software system for
present-ing road weather data and information focuspresent-ing
on the current and future situation on the roads.
METIS provides a comprehensive overview of the
weather in real time.
•
User definable alerts via SMS and/or email•
Alerts are sent if pre-defined values are exceeded or if hazardous situations appear in forecastsearly warning
SySteM
•
Cloud solution with web-based access•
Solution for data visualization•
Interactive presentation using maps, images, anima-tions, tables, and graphs•
Open architecture and cooperation with third-party systems•
Modularity and language localization•
Designed also for tablets and smart phones•
Radar (precipitation) images•
Various satellite (cloud cover) images•
Interactive animations•
Unique forecast radar•
Weather prediction model•
Map based presentation of weather station network (and their data) with zoom function•
Visualization in layers; layer on/off function•
Images from remote sensing•
View switching – warnings, road condition, road tem-perature, air temtem-perature, cameras•
Search function – station, road, city•
List of stations and their measured data•
Custom definition of favourite stations•
Data in tables, graphs, warnings•
Data history•
Forecast graphs•
General information – type of station, location, altitude•
Real time camera images with history•
Real view of the road and current condition – images, videos•
Custom definition of favourite cameras•
Hourly image previews•
Access to image historyMETIS
Silniční meteostanice Kamery Předpovědi ČHMÚ Radary Satelity Meteorologické výstrahy SSWM Předpovědní model ALADINMETIS
Weather stations Cameras Met Office forecasts Weather radars Vehicle tracking Meteoalarm warnings SSWM NWP model•
Available on Android and iOS•
Online data from road weather stations•
Overview of favourite stations•
Map display•
Integration of all relevant information sources
•
Updated every hour
•
Forecast for upcoming 12 (or 24) hours
•
Road status prediction – dry, wet, snow, drifting snow,
frost, ice
•
Resolution for every 1 km of the road network
•
Treatment recommendation for road maintenance operators•
Fast and easy implementation on a new road network•
Use of existing road weather stations•
Field-proven, precise predictions•
Direct integration into METISKey featureS
SSWM Key
benefitS
SSWM
Advanced maintenance decision support system
Recommendation for maintenance treatment
Graphic information based on maps
suppoRt system
foR WinteR
maintenanCe
diReCt
integRation
With system
MetiS
local geodatabase
thermal mapping geographical information expert information traffic flow data Road constructionOnline package
Weather prediction model Weather stations maintenance data
floating car data traffic flow data
Support
SySteM for
winter
Maintenance
tO suppOrt the
right decisiOn
tO cut the
maintenance
cOsts
tO increase
safety On rOads
Road Traffic Technology
1011
WinteR maintenanCe
peRfoRmanCe
and Cost analysis
WMi
Winter MaintenanCe Severity
Winter Severity vS.
MaintenanCe perforManCe
•
Use of road weather and professional climate stations•
Monitoring snowfall, drifting snow, temperatures, humidity (frost and ice)•
Standardized to cells of 500 x 500 m•
Considers geographical conditions (altitude, land use, etc.)•
Statistical analysis of their long-term relation•
Independent of location, climate, and extent of road network of different contractors•
Definition of standard performance for specific winter conditions•
Disclosure of deviations from the standard level of maintenancemaintenance
perfOrmances
[km]
• scattering chemical materials • snow removal
• inspection routes
[h]
• snow removal by rotating plow • snow removal by tractor plow
Material consumption • salt, grit [t] • brine [l] • road temperature • air temperature • dew point • precipitation • road length and width
• road category according to maintenance type
altitude
topography land use
gis rOad data
geOgraphical
infOrmatiOn
meteOrOlOgical
data
18 16 14 12 10 8 6 4 2 0 0 1 2 3 4 5 6 7 8 9 10 11 12
Winter Maintenance Index
Winter Performance
Standard maintenance determined by large number of contractors in a countrySTANDARD
MAINTENANCE
OVERREACTION
Overpriced
UNDERREACTION
Impact on traffic safety
18 16 14 12 10 8 6 4 2 0 0 1 2 3 4 5 6 7 8 9 10 11 12
Index náročnosti zimní údržby
Výkony zimní údržby
OPTIMÁLNÍ VÝKONY
NADMĚRNÉ VÝKONY
Předražování
NEDOSTATEČNÉ VÝKONY
Dopad na bezpečnost
silničního provozu
Standardní údržba stanovená historicky velkým počtem dodavatelůinvOice
• invoiced performances • unit prices • invoiced priceWMi
Performances recalculated to area (hectares) of maintained roads
invOice check
fOrmal invOice check
repOrting check
adequacy check
perfOrmance check
financial controlling
month by month week by week
StatiStiCS
Reported and standard performance difference WMi general WMi plowing WMi scatteringRoad Traffic Technology
12 13RefeRenCes
lezník
Crossmet
ostružná
Crossmet
brálová
Crossmet
d1 ostrava
Crossmet
prevention of invalid data presentation to the end
user.
detection of data invalidity should immediately
trigger a notification to a service engineer.
validation iS neCeSSary for
tWo baSiC reaSonS
data validation
CheCK typeS
•
Physical, sensory and meteorological limits•
Context between variables of a selected station•
Analysis of short-term and long-term trendsWrong decisions can be made about winter maintenance because of invalid or missing data that can lead
to unnecessary overpricing of maintenance or to neglection of maintenance with an obvious impact on
traffic safety.
Validation of meteorological data is crucial for the maintenance decision support system. Data quality and
availability is essential for the immediate data interpretation by the dispatcher, and also for all related
systems which use data from meteorological stations for further processing (e.g. variable speed regulation,
forecast models).
•
Context between nearby stations•
Availability of equipment (data) and its settingsAdvanced data validation is ensured routinely by CROSS Pearer software that allows the running of
scheduled checks as well as on-demand checks. It also includes a sophisticated system of notifications to
inform service support and supervising technology operation.
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2
3
4
5
6
FAILURE: Unchanging value WARNING: Oscillation
WARNING: Value context – suspicious status Snow
WARNING: False precipitation FAILURE: Exceeding limits
WARNING: Station context – nearby station reports 92 % 1 2 3 4 5 6
