For the ATCS of small towns the PTS CCS SW is installed on two personal computers.
o WS for ZCC engineer;
o DB server, WS for the technologist, WS for the TM engineer.
The ATCS software (SW) includes:
o The PTS CCS SW as a part of system software (SSW), application software (ASW) and special software (SpSW);
o The traffic management technology software (TMT SW) in accordance with the purpose and functions performed.
The system software includes the following software products:
o Linux RedHat Enterprise Edition 4 WorkStation and Linux RedHat Advanced Server 3 licensed operating systems;
o Oracle v.9.2 licensed data base management system;
o ÎÑ Linux functions library QT v.3.3.3;
o ÎÑ Linux Ethernet LAN SW;
o NOD32 Enterprise Edition Linux WorkStation è Linux File Server antivirus;
o ÎÑ Linux editors (text, graphics).
The application software provides implementation of the technological control process with the following functions included:
o Provision of control algorithms:
• selection of coordination on the plan of time map (TM);
• selection of phase and mode on the coordination plan;
• selection of the coordination plan on the movement parameters in the characteristic points;
• coordination between the light signals and speed control at the crossing;
• network coordination of the light signals;
• coordination of the light signals with the shift optimization;
• traffic mode control depending on the queue length, load coefficient, total losses;
• local flexible traffic control on the independent light signal with an allowance for volume of traffic, length of queue, total losses of the traffic streams;
• replace of the coordination plan and time maps;
• generation of the telemetry instructions (TI);
• selection of the control modes;
• monitoring of the situation on the traffic streams parameters, TMT SW status, communication channels status, parameters of the management efficiency;
• processing of the telesignaling information;
• DB record (writing, reading, updating);
• establishing of communication over the wire and cellular communication channels;
o Information data base (IDB) generation, including the algorithms settings:
• generation and writing (updating), data reading;
• generation and distribution of the DB fragments in conformity with the arranged work process;
o Requests generation:
• dispatch control including the “Green street” (GS) mode;
• generation of the live reference information;
• generation of the statistical reference information;
o Input of speech information in the extraordinary situations:
• generation of the speech messages arrays and their correlation to the extraordinary situations;
• control of the speech messages display;
• graphical data display of the traffic management technical means status, communication channels status, parameters of the traffic stream and effectiveness;
o Statistical information processing:
• data processing control;
• data processing of the telesignaling, remote control, telemetry and generation of the effectiveness parameters.
The technological algorithms for coordination between the light signals and speed control at the crossing with optimization of the shifts, network coordination, traffic dispatching are the challenging technological algorithms considerably influencing on the management efficiency.
Special software provides implementation of the work process including the following functions:
o Telemetry information processing:
• queue length calculation;
• calculation of the cycle, specific and total delays of the transportation facilities;
• calculation of the cycle, specific and total quantity of the stops;
• calculation of time for the passage;
• calculation of the load coefficient;
• calculation of the specific and given volume of the hazardous substances release (CO, hydrocarbons, nitrogen oxides);
o Generation of the control efficiency factors;
o Map support:
• visualization of map (mimic panel of highway-road network (HRN)), its fragments, data associated with the map (mimic panel);
• editing of the graphical pictures, HRN mimic panel;
• control of the requests on the traffic schedules and technological parameters;
o Planned repair and light signals operational reliability evaluation;
• DB generation and record:
- status (failures, deviations) of the system and non-system light signals and their components;
- status (failures) of the PTS CCS components;
- requests for repair, execution of these requests and requests for the light signals as well;
• generation and keeping of the reliability reference books;
• generation, display and printing of the reliability reports:
- reliability evaluation;
- calculation of the light signals reliability data model;
- calculation of the recovery average time;
- calculation of the reliability factor;
o Management efficiency evaluation:
• calculation of the economical losses because of the traffic delays and stops;
• analysis of the traffic factors;
• issue of information about any road traffic factor going beyond the prescribed limits;
o Computer-aided design (CAD):
• generation of IDB technological algorithms parameters:
- local control;
- coordinated control;
- mainline control;
- network control;
• calculation of the traffic management parameters for:
- local control;
- coordinated control;
- mainline control;
- network control;
• generation, display and printing of reports about the TM parameters calculation results.
The channelizing equipment is composed of:
o zonal center controller (ZCC);
o cellular communication modems;
o radio station.
The zonal center controller is used in the ATCS PTS CCS and provides interaction between the PTS CCS and road controllers (RC).
The quantity of the peripherals connected over the wire lines to one ZCC:
o up to 64 RC through the modem of the channel communication modulus (CCM) for one RC in the channel;
o up to 128 RC through the CCM modem for two RC in the channel without telemetry reception and processing.
Up to 7 ZCC may operate in the ATCS.
.jpg)
