Description

SIStemas COoperativos GAlicia). It will be based on an intelligent corridor, which is located in Galicia and will make use of the existing road network. The intelligent corridor includes around 60 km. of motorway roads, controlled by the Traffic Management Center of Galicia (DGT) CTAG (Galician Automotive Technology Centre/ Centro Tecnológico de Automoción de Galicia) and DGT (Traffic Management in Spain), through the Northwest Management Traffic Centre, will use existing infrastructure (beacons, road post) of a road stretch to carry out the tests, equipping both in-roadside and more than 100 vehicles with the necessary hardware and software. The Traffic Management Centre of DGT in Spain controls the field equipment installed on the roads.

Objective

Preparation of an intelligent corridor for C2X FOT purposes
Pilot testing of the corridor with C2ECom functions
Definition and implementation of evaluation methodologies applied to cooperative systems
Interoperability assessment between different C2X technology providers and vehicles
Final FOT with around 100 vehicles / users and assessment of results

Inputs

. Infrastructure

More than 60 Km of roads controlled by the DGT North‐West Traffic Management Center
It includes city exits, sharp bends and tunnel sections
Rest areas in motorways
3G coverage in the whole area
ETSI compliant C2X for DRIVE C2X
21 Cameras
19 Variable Message Pannels
10 high precision meteorological stations
30 Road Side Units

The vehicles in SISCOGA will be:

20 Class I passenger vehicles
5 Class I emergency vehicles
2 Class I trucks
2 Class I buses
80 Class II passenger vehicles

System Architecture

Equipment architecture

The Traffic Management Centre of DGT in Spain controls the field equipment installed on the roads. This equipment communicates by a fibre-optic LAN network with SDH nodes finishing. Also, these stations communicate via 3G, which makes it possible to monitor their status continuously. Some of these stations are also connected to a weather station.

The chosen stretch along the A-52 and A-55 motorways is suitable for the tests due to lower traffic density and the available equipment (remote stations, video cameras, weather stations, information panel). Moreover, the road hard shoulders enable vehicle detention for both tests and maintenance tasks. In addition, the corridor includes a tunnel (A Cañiza tunnel) which makes it possible to analyses a critical indoor scenario.

The additional equipment included in this intelligent corridor comprehends more than 30 Road Side Units working at 5,9 GHz. Some of these Road Side units are placed just at the entrance of Vigo city, being capable to work with traffic lights information.

Different applications are considered, but mainly those related with safety systems using both C2I and C2C cooperative systems. Among the proposed cases, hazardous scenarios on a tunnel are planned as well as warnings about traffic congestion, weather conditions or road works will be part of the set of situations in the tests.

Management Center:

Traffic management center control application (TMC - managed by DGT – Ministry of Traffic)

Allows traffic data retrieval and visualization

Independent control for each remote station

Provides with information to the whole network

FOT management center (FMC – Managed by CTAG)

Receives data from TMC
Allows visualization and operation of each Road Side Unit
Fleet management
Central Data Server
RAID redundant
Data enrichment based on map information
SPSS for data analysis

Communication systems:

The road will be equipped with over 30 Road Side Units (5,9 GHz 802.11p communications) covering 60km of roads.
Class I vehicles will be equipped with 5.9 GHz 802.11p communication unit, specific HMI, GPS with application maps, UMTS and CTAG Data logger.
Class II vehicles will be equipped with UMTS, GPS and CTAG Data logger.
CTAG data logger in all vehicles
Real-Time access to information through DGT Database
Remote access (optic fiber based Ethernet) to RSUs
Possibility to update RSU SW from CTAG.
Possibility to perform regular traffic messages status check
All network components linked by an optic fiber ring

Traffic Monitoring Systems:

Available data from:
Inductive loops for the monitoring of:
- Traffic density per lane
- Media speed per lane
High-precision real time Weather Stations (7 units)
Real time traffic monitoring through integrated surveillance cameras (21 units)

Panning

Zoom

FCD
Real-time Variable Message Sign (VMS) control (19 units)
Real-time fiber optic Ethernet connection with RSUs and all the above mentioned components

Outcomes

Applications tested in this test site

Accident / Traffic Jam Information
Floating Car Data
Adverse Weather information
Variable Speed Limits
Road Works Information
Merge Assistant
Alternative Route information

One of the applications evaluated is Adverse Weather Warning. From a number of hypothesis, such as “The driver reduces his speed after receiving the warning” performance indicators were derived, e.g. the maximum speed, the headway, the average number of hard braking situations etc. This data will be gathered in-vehicle from a CAN-bus logger and externally from RSUs. Also questionnaires will be given to users to evaluate user acceptance indicators.

This corridor was part of two European pilot projects supporting the market deployment strategy of this type of technologies:

Compass4D, which aims to improve safety and energy efficiency for sustainable mobility in urban environments, especially in intersections
CO-GISTICS, which analyses how to improve truck logistics in cities in terms of energy efficiency using cooperative systems. (Help at intersections, recommendations to reduce CO2 emissions and facilitate truck parking)

Projects analyzed the impacts on:

Driving safety
Driver behavior
Environment and consumption
Traffic flow
Driver acceptance and perception of the system

Documents:

Evaluation form