Road Traffic Technology

Adaptive traffic control solutions for urban traffic

CROSS designs and delivers smart traffic light control systems, customized for a particular city and traffic situation. Intelligent traffic-actuated and adaptive traffic control includes independent control of intersections as well as their line and area coordination. System allows for a use of public transport preference and pre-set routes for emergency vehicles.

  • Decentralized traffic control
  • Decentralized traffic control in coordination
  • On-line monitoring, status control and failure management
  • Traffic control in all modes with centralized management
  • Centralized full-featured monitoring and control
  • Full adaptive control and traffic flow optimization
  • Traffic data collection, fusion, and evaluation
  • Up to 1500 controllers (intersections) can be connected in eDaptiva traffic management center
  • Connectivity via several protocols

Traffic control example

Traffic Light Controllers CROSS RS 4

CROSS RS 4 is the fourth generation of traffic light controllers by CROSS. They meet the highest safety standards and offer the most advanced traffic funcionality. CROSS traffic light controllers can work in the decentralized mode in a “master – slave” coordination and/or can be integrated into an urban traffic management center.

 Traffic Light Controller CROSS RS 4

Traffic Light Controller CROSS RS 4

CROSS RS 4 is designed to work with a range of traffic detectors. Signal head outputs are fully configurable and each output is individually monitored with an independent microprocessor using an analogue sensor.

  • Fixed time control
  • Creation of fixed time signal plans by means of a standardized description
  • Traffic-actuated control (fixed and flexible stage order and structure, free creation of stages, and free creation of signal plan based on predefined criteria – frameworks)
  • Public transport preference
  • Fire brigade, police, ambulance preference in 15 preset routes
  • Number of signal groups – max. 64
  • Number of signal head outputs – max. 288
  • Monitoring of each signal head output
  • Number of loop detectors – max. 256
  • Number of usable external inputs – max. 264
  • Number of pedestrian push buttons – max. 118
  • Number of signal plan frameworks – max. 60
  • Number of stages in each signal plan – max. 16
  • Number of stages of manual control – standard 6
  • Interface via RS 232, Ethernet, USB, GSM, GPS, 3G, optionally: opto-isolated RS 232, RS 485, DSL
  • Fulfills requirements of EN 50556, EN 12675
  • Safety integrity level SIL3
 Traffic Light Controller CROSS RS 4S

Traffic Light Controller CROSS RS 4S

Model CROSS RS 4S is a small and compact device for fast and easy installation and integration. It is ready for a range of peripheries such as a 4,3“ LCD touch screen.

  • Fixed time control
  • Creation of fixed time signal plans by means of a standardized description
  • Traffic-actuated control (fixed and flexible stage order and structure, free creation of stages, and free creation of signal plan based on predefined criteria – frameworks)
  • Public transport preference
  • Fire brigade, police, ambulance preference in 15 preset routes
  • Number of signal groups – max. 64
  • Number of signal head outputs – max. 188
  • Monitoring of each signal head output
  • Number of usable external inputs – max. 128
  • Number of pedestrian push buttons – max. 128
  • Number of signal plan frameworks – max. 64
  • Number of stages in each signal plan – max. 60
  • Number of stages in each signal plan – max. 16
  • Number of stages of manual control – standard 6
  • Interface via RS 232, Ethernet, USB, GSM, GPS, 3G, optionally: opto-isolated RS 232, RS 485, DSL
  • Fulfills requirements of EN 50556, EN 12675

Typical Accessories

Detektory

  • Loop detectors
  • Video detection
  • Pedestrian push buttons
  • Radars

Signal heads

  • Bulbs 230V, 110V
  • LED 230V, 40V and 42V with dimming
  • Low voltage halogen with internal transformer

Public transport preference

  • On board unit and further vehicle equipment
  • Modem inside the controller

Active preference of public transport

CROSS presents a comprehensive solution for public transport preference at traffic light controlled intersections. These systems use real-time data communication between vehicles and traffic light controllers to offer maximum convenience for all road users. CROSS traffic light controllers manage signal plans in real time and assign the vehicle preference required.

CROSS bg ilustration
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Data transmission between the vehicle and traffic light controller

  • Vehicle location (using GPS)
  • Logical position on the line (depending on stops)
  • Real time deviation from timetable
  • Vehicle operating conditions info (status such as driving, opening doors, etc.)
  • Ability to exchange data at a distance of hundreds of meters between vehicle and controller

Time savings in providing preferences

  • Selective vehicle preference assignment
  • Respects the local hierarchy of rights
  • Minimizes the delay of all vehicles at intersections
  • Optimizes the coordination necessary for public transport vehicles
  • Only gives preference to physically present vehicles
  • Isolated branch opens only for the current passage of public transport vehicles
  • Can provide additional public transport dependent traffic functions
 CROSS Software

CROSS Software

The CROSS software package contains a comprehensive range of products for configuration, remote control, and monitoring of traffic controllers. It facilitates traffic design and traffic modelling, device supervision, traffic monitoring, strategic and adaptive control.

The system is based on CROSS PTC (maintenance and programming software) and eDaptiva (full-featured urban traffic management center), which cooperate together. The solution is complemented by an add-on module – eDaptiva web thin client for system monitoring by using eDaptiva services.

CROSS PTC

 CROSS PTC

CROSS PTC is a software tool for parametric programming and uploading of traffic definitions into CROSS traffic light controllers (with the option of real‑time monitoring).

 CROSS PTC

 eDaptiva

 eDaptiva

eDaptiva is a multi-featured urban traffic management center. eDaptiva provides monitoring, supervision, and adaptive control and meets different requirements of small, middle-sized or large urban areas.

Basic system monitoring is available also via eDaptiva web thin client.

 eDaptiva

Case study Adaptive control and public transport preference in Zlín

In early 2013 a public transport preference project in the city of Zlin was completed. A total of 88 public transport vehicles were equipped with on-board units, communication devices, and multi-function displays for drivers. Simultaneously, 41 traffic controllers were equipped with radio-modems for two-way communication between vehicles and controllers.

The system, now in full operation, uses two‑way online communication that informs a traffic controller about the current position of an incoming vehicle or a vehicle stopped at a nearby bus stop. The controller utilises this information for an optimisation of control and adapts (extends) green time in the direction of the vehicle passage. At the same time, the vehicle driver is informed about the optimum time for quick and uninterrupted passage through the intersection. Thus, the driver can, for example, stay longer at a bus stop before departing and still reach the intersection on a green light (or when green is about to be given).

Thanks to this system of public transport preference, individual lines achieved up to 20% travel time reduction. Furthermore, on the basis of this data, time schedules have been adjusted.

 Ilustration

CROSS References

Popis reference
Europa Czech Republic Zlín

Traffic control system with public transport preference 41 controllers equipped by C2V and V2C communication 88 public transport vehicles connected Integration of eDaptiva and Invipo systems

Traffic control system with public transport preference 41 controllers equipped by C2V and V2C communication 88 public transport vehicles connected Integration of eDaptiva and Invipo systems | Czech Republic
Popis reference
Europa Bulgaria Sofia

eDaptiva urban traffic management center 160 traffic light controllers Fully localized and adapted

eDaptiva urban traffic management center 160 traffic light controllers Fully localized and adapted | Bulgaria
Popis reference
Europa Poland Legnica

Traffic control system as a part of complex ITS project 41 traffic light controllers CROSS RS 4 Fully localized and adapted Integration of eDaptiva and Invipo systems

Traffic control system as a part of complex ITS project 41 traffic light controllers CROSS RS 4 Fully localized and adapted Integration of eDaptiva and Invipo systems | Poland
Popis reference
America Brazil Guaruja

Pilot installation in Sao Paulo

Pilot installation in Sao Paulo | Brazil
Popis reference
Middle East Turkey Izmir

Fully equipped traffic control center 400 traffic light controllers – CROSS RS 4S new generation Public transport preference Integration of eDaptiva and Invipo systems Fully localized and adapted

Fully equipped traffic control center 400 traffic light controllers – CROSS RS 4S new generation Public transport preference Integration of eDaptiva and Invipo systems Fully localized and adapted | Turkey
Popis reference
Middle East Oman Muscat

Traffic control system More than 20 traffic light controllers CROSS RS 4 Extreme climatic conditions Fully localized and adapted

Traffic control system More than 20 traffic light controllers CROSS RS 4 Extreme climatic conditions Fully localized and adapted | Oman
Popis reference
Europa Russia Sochi

Traffic control for Olympic games 2014 eDaptiva urban traffic management center 31 traffic light controllers CROSS RS 4 Fully localized and adapted

Traffic control for Olympic games 2014 eDaptiva urban traffic management center 31 traffic light controllers CROSS RS 4 Fully localized and adapted | Russia
Popis reference
Europa Russia St. Petersburg

eDaptiva urban traffic management center 47 traffic light controllers CROSS RS 4 Fully localized and adapted

eDaptiva urban traffic management center 47 traffic light controllers CROSS RS 4 Fully localized and adapted | Russia
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