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Moxa Wide Temperature Device Servers for Traffic Data Collection - Ramp Management System
2011-12-01
Product Solutions:
NPort 5110A/NPort 5130A/NPort 5150A Series

1-port RS-232/422/485 serial device servers

NPort 6610/NPort 6650 Series

8/16/32-port RS-232/422/485 rackmount secure terminal servers

NPort IA5150A/NPort IA5250A/NPort IA5450A Series

1, 2, and 4-port serial device servers for industrial automation


Overview
Traffic Data Collection
Traffic Data Collection is a key subsystem that allows the traffic control room to monitor and analyze different highway locations. Intelligent transportation systems need accurate data about both long-term traffic trends and real-time traffic conditions to analyze the present traffic situation.Using networking technologies and intelligent traffic devices, intelligent transportations systems reduce accidents, improve traffic flow, and preemptively prevent gridlock. With an effective intelligent transportation system, a traffic infrastructure can improve its capacity without necessarily adding more roads.
 
One critical application in traffic data collection is to analyze and control the traffic volume of all high and freeway entrances and on-ramps. Given that there are approximately 830 Interstate freeways across the United States, one can imagine how difficult of a task it can be.
 
Ramp Management System
Ramp management systems are an important tool to help traffic controllers gauge and manage traffic conditions. Deployed on freeway entrance or exit ramps, these ramp management devices regulate and track how many vehicles use the freeway. Components of ramp management systems include:
l   Signage: to inform motorists about freeway traffic conditions in advance
l   Ramp Sensors: to count the traffic volume
l   Loop Detectors : to measure and calculate the traffic flow, speed and occupancy levels
l   Ramp Meters: work with a signal controller to regulate the flow of the traffic entering the ramp
l   Traffic Signal Lights: programmed by timing to execute a “Stop-and-Go” strategy that controls the freeway entry volume
 

System Requirements
Ramp Management Systems have proved to be successful in decreasing traffic and improving driver safety. The most pressing considerations when deploying Ramp Management Systems are:
l   How to implement the right strategies for Ramp Management
l   Finding reliable equipment for the Ramp Management Systems in extreme temperature environments
l   Using networking, equipment, and systems in a way that optimizes the efficiency of remote monitoring and control performance
l   Preventing downtime or delay for ramp traffic lights
l   Enabling immediate response to remote adjustments or closures of the ramp entrance in response to emergency events, such as bad weather or accidents.
l   Improving the future maintenance schedule so that it is cost-effective and efficient.
 

Moxa Solution
Device Servers: NPort 6650-8/16-T Series / NPort 5000-T, 5000A-T, IA 5000-T & IA5000A-T series
For device networking, Moxa provides industrial-grade device servers that excel in a wide temperature range. Moxa’s broad device server portfolio covers devices from 1 to 16 serial ports and connectivity through the network and Internet, so traffic controllers and the Traffic Management Center (TMC) can remotely monitor or access the field devices.
 
Key Functions:
l   Real COM Driver –allows ITS deployment on existing serial systems without changing existing software or drivers
l   No distance limitations on the scale and reach of the traffic system, thanks to Internet communications backbone
l   Highly reliable, wide-temperature design for operations outdoors and in extreme temperature environments
 
Ethernet Switches: EDS-200A series, 400A, 500A series
For networking, Moxa provides industrial grade unmanaged or managed Ethernet switches for 24/7 non-stop remote networking with the TMC network.
 
Key Benefits:
Low total cost of ownership
High interoperability with many devices
High expandability for future additional network segments
Future-proof thanks to support for advanced protocols and features, such as 10/100BTx, Gigabit, 10GE Flexible Network Bandwidth
Fast and reliable communications redundancy, with Moxa Turbo Ring technology
 


Why Moxa

l   Highly flexible direct remote access/monitoring of field ITS devices without PCs
l   More reliability MTBF to reduce future maintenance
l   High density of serial ports to support multiple ITS devices