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Positive Railroad train Control

NJ TRANSIT CELEBRATES CERTIFICATION OF POSITIVE Railroad train Control SYSTEM

NJ TRANSIT'southward Positive Railroad train Control (PTC) arrangement has been certified by the Federal Railroad Administration every bit coming together the Dec 31, 2020 deadline for implementation.

Read more here.

What is PTC
How PTC Works
NJ TRANSIT's PTC
Existing Safety Systems & Initiatives

Positive Train Control (PTC)

NJ TRANSIT'southward highest priority is safe and the proper installation of Positive Train Control (PTC). As nosotros progress with the implementation of this critical prophylactic enhancement feature, it is important to remember that NJ TRANSIT remains a condom rail arrangement and will continue to operate safely until PTC is fully implemented.

NJ TRANSIT marked 100-percent completion of the Federal Railroad Administration's (FRA) 2018 yr-finish milestone of the 2020 implementation schedule for Positive Train Control (PTC). Criteria for this requirement included installation of equipment on locomotives and cab control cars, installation of 326 miles of wayside equipment including radios, transponders and poles, also every bit initiating PTC testing and employee grooming. Throughout the course of 2019 and 2020, NJ TRANSIT will go on to install PTC equipment on the remaining locomotives and cab cars and testing PTC technology throughout our arrangement.

What is PTC?

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Positive Train Control (PTC) is technology to heighten rail safety by monitoring and decision-making train movements. Using Global Positioning System (GPS) technology, Wi-Fi and high band radio manual, PTC is capable of automatically controlling train speeds and movements, thereby reducing the chance of accidents due to homo fault.

The Rails Condom Comeback Act of 2008, passed by Congress, requires the implementation of a PTC system on all non-exempt driver railroads, including NJ TRANSIT. PTC is intended to prevent:

• Railroad train-to-train collisions;
• Derailments caused past excessive speed;
• Unauthorized train movements in piece of work zones; and
• Move of trains through switches left in the wrong position.

As a new technology, PTC requires pattern, development, prototype testing, equipment retrofitting and organization-broad rail implementation.

How PTC Works

PTC networks enable real-fourth dimension information sharing among locomotives, rail wayside devices, and a centralized office. The shared information includes railroad train movement, position and speed; electric current speed restrictions; and the land of signal and switch devices. Existent-time communication tin account for irresolute track conditions, such every bit temporary speed restrictions when railroad employees are conducting rails maintenance.

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PTC is a computer-based engineering that uses a communications system to
monitor and control train movements to minimize the potential for homo error.

PTC on NJ TRANSIT'S Organization

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PTC systems feature calculator-based communications and information technology designed to improve railroad safety. PTC will complement NJ TRANSIT'south existing cab signaling system and Automated Train Control (ATC) engineering science.

NJ TRANSIT's PTC engineering science, the ASES Two System, uses on-board sensors, digital radio communications, track transponders and fixed wayside bespeak systems to ship and receive a stream of data. The PTC organization consists of 3 chief elements:

• Radio transponders and other equipment onboard locomotives or cab control cars;
• Antennas, transponders and other equipment along the railroad right-of-style (ROW); and
• Computer servers and systems for the Rails Operations Middle (ROC).

PTC'south intraoperative communications allow the track, vehicles and the Rail Operations Eye (ROC) to continually relay speed and location information to 1 another. Considering of the technology'due south complexity, PTC implementation requires the development of vehicle prototypes to test the new arrangement while we meantime retrofit our existing fleet.

NJ TRANSIT's rail system includes 12 commuter rail lines, most operating on tracks shared with other freight and passenger railroads. On the heavily-travelled Northeast Corridor (NEC), which belongs to Amtrak, a unlike PTC organisation is existence implemented. Although functionally like, the various PTC systems will demand to communicate with 1 another. The coordination required to ensure interoperability with NJ TRANSIT's five tenant railroads, including the two largest (Conrail and Norfolk Southern), adds significantly to the complication of the project.

While PTC'south prophylactic benefits are significant, PTC implementation is a complex and lengthy process. Railroads, including NJ TRANSIT, must install, integrate and exam:

• Advice systems;
• Hardware on locomotives and along the side of the runway; and
• Software in the ROC, onboard the train and forth the track.

Existing Condom Systems & Initiatives

It is important to recollect that NJ TRANSIT remains a safe track system and will continue to operate safely until PTC is fully implemented. PTC is an advanced rubber system that volition serve to heighten NJ TRANSIT's existing speed enforcement engineering science, Automatic Train Command (ATC). Many people may not know that NJ TRANSIT was already operating with automatic speed enforcement applied science, or that nosotros were a leader in safety among the nation's passenger railroads when this prophylactic technology was get-go introduced.

What is ATC?

Railway wayside betoken systems operate in a neglect-safe manner to inform the locomotive engineer of the safe speed for each train. Opposing, following, and converging railroad train movements are protected. Prophylactic train operation depends on the engineer's compliance with signal indications.

ATC provides a college level of safety by providing a check on the engineer's operation of the train. ATC ensures that the engineer is alert to each modify in the displayed cab bespeak that requires a reduction in train speed. The engineer must acknowledge the change and too reduce speed to the required charge per unit. Failure to do so will automatically cause the brakes to be applied, stopping the railroad train.

NJ TRANSIT began to expand ATC beyond the previous Northward Jersey Coast Line installation following the Conrail-Amtrak accident at Chase, Maryland in Jan 1987. Systemwide ATC coverage at NJ TRANSIT was completed in 2008.

Showtime nearly 1995, ATC enhancements were introduced to enforce speed restrictions on curves. Additional curves and bridges were protected following accidents on other railroads that were caused by excessive speed on a curved runway. All NJ TRANSIT curves, and bridges that require a reduction of more than 20 miles per hour from the maximum authorized arroyo-speed, were equipped with ATC by December 2016.

PTC is an additional enhancement of the existing ATC system. PTC will provide positive stop enforcement at interlocking signals and more precise enforcement of temporary and permanent speed restrictions.

Additional Safety Measures and Initiatives

Safety is NJ TRANSIT's highest priority. Each year, nosotros invest more $100 million to maintain our safety systems and promote a State of Proficient Repair for our fleet and infrastructure. Major safety initiatives include:

• Established in May 2014, the Office of Organization Safe (OSS) consolidated all bureau safety functions, beyond all transit modes and in the workplace. OSS focuses on promoting the health and safety of the bureau's customers and employees and preventing accidents and injuries. The OSS likewise coordinates and manages incident prevention efforts and develops a more rigorous safety culture. The OSS is an important organizational structure that complements our already existing operational protocols and technologies.
• The Rail Operations Heart (ROC) in Kearny controls train movements, signals and switches and monitors the location and status of every locomotive throughout the system.
• Our trains utilise operator safe devices including "alerters" and the so-called "dead human being'south switch." Both tools crave the train engineer to stay engaged and alert Any failure to respond automatically triggers the restriction, resulting in a consummate vehicle stop.
• Starting with the Federal Railroad Administration'south (FRA) initial roll-out in 2009, NJ TRANSIT has participated in the Confidential Close Call Reporting Arrangement (C3RS). Under the program, employees tin confidentially report unsafe events or conditions to federal authorities.
• To maintain a State of Proficient Repair for our rail organization, a specialized rail geometry inspection vehicle examines every inch of our tracks once per month â€" a schedule that exceeds the quarterly federal requirements. Our railroad also conducts transmission rail inspections once per calendar week.
• Safe sensitive employees with positive Obstructive Slumber Apnea (OSA) screening are removed from service until a full slumber report tin be conducted and they obtain the appropriate documentation attesting to the satisfactory results of treatment or the that condition is not present.
• Rail Operations implemented a new initiative which requires the conductor to ride in the front cab of trains, forth with the engineer, when entering terminals in Hoboken, Penn Station New York, Atlantic City, Princeton, Gladstone and the Meadowlands Rail Station.
• Speed limits entering Hoboken, Atlantic City, Princeton and the Meadowlands Rail Station have been reduced from 10 mph to 5 mph as a proactive measure.
• Inward & outward facing cameras on 100% of locomotives and cab cars
• Following a thorough assay, NJ TRANSIT will be replacing all of the existing bumper blocks with sliding friction bumper blocks at Hoboken Terminal, the Atlantic City Rail Terminal and the Meadowlands Runway Station - all stub-end stations.
• Existing bumper blocks will stop trains at speeds up to 5 mph
• Energy absorbing sliding friction bumper blocks to exist installed (0.15 g max @ x mph)

Source: https://www.njtransit.com/ptc

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