signal system Archives - Reddy Analytics Associates

Operations Improvements, Projects, change management, commuter rail, fleet, infrastructure, investment planning, operating techniques, signal system

Design and Implementation of Positive Train Control (PTC)

Mr. Kesich was instrumental in ensuring that the design and implementation of the PTC system at a large commuter railroad property was completed and adhered to mandated timelines. Starting in 2006, he was directly involved in implementing an Advanced Civil Speed Enforcement System (ACSES) within that railroad’s operating...

Data Analysis, Projects, automatic vehicle location, signal system, subway

Development of Real-Time Transit Delay Map Visualization Tool

The signal system on NYC Transit’s “B” Division (with the exception of CBTC on L line) was installed in phases during the Great Depression and currently in the process of modernization and would take a few more years. All signals operated on relay logic and it was impossible...

Data Analysis, Projects, automated fare collection, data analytics, scheduling/service planning, signal system, subway

Subway Service Adjustment in Response to COVID-19 Ridership Changes

The New York City metropolitan area was hard hit by COVID-19, and the pandemic brought with it unprecedented challenges for New York City Transit. Previously dependable approaches to monitor ridership suddenly became unavailable (e.g., local bus payment data, field checks). We were tasked to quickly modify existing processes to...

Planning & Management, Publications, bus, operating techniques, performance, signal system, subway

Using Real-Time Data to Detect Delays and Improve Customer Communications at New York City Transit

New York City Transit operates one of the world’s largest transit systems, and it can be difficult for the agency’s communications team to keep track of the numerous service disruptions that need to be communicated to customers. This paper introduces the Transit Visualization tool, which processes real-time train...

Data Analysis, Projects, automated fare collection, automatic vehicle location, bus, data analytics, performance, signal system, statistical sampling, strategy, subway

Benchmarking of Key Transit Performance Indicators

A large transit agency’s cost of operations per passenger, per hour, and per mile was discerned to be very high. It sought to explore how practices differed from other operators. Understanding how one’s own system performs against similar peer properties is valuable in deciding on changes in transit...

Data Analysis, Projects, automated fare collection, data analytics, signal system, subway

Real-Time Estimation of Platform Crowding

Amid significant increases in ridership (9.8% over the past 5 years) on the more than 100 year-old New York City Transit (NYCT) subway system, NYCT has become aware of increased crowding on station platforms. Because of limited platform capacity, platforms become crowded even during minor service disruptions. A...

Data Analysis, Projects, data analytics, performance, signal system, subway

Tracing Train Delays to Incident Causes

Knowledge of the root causes of delays in transit networks has obvious value; it can be used to direct resources toward mitigation efforts and measure the effectiveness of those efforts. However, delays with indirect causes can be difficult to attribute, and may be assigned to broad categories that...

Operations Improvements, Projects, automated fare collection, data analytics, operating techniques, performance, signal system, subway

Service Intervention Recommendation Engine

SIRE is a web-based real-time decision support tool for dispatchers in the Rail Control Center (RCC). It assesses the current locations and movement patterns of trains, factors in typical ridership patterns, and recommends actions dispatchers should take (e.g., holds, skips) to improve service to maximize the benefit to...

Operations Improvements, Projects, change management, data analytics, infrastructure, investment planning, journey time reduction, operating techniques, performance, signal system, statistical sampling, subway

Train Speed & Safety Task Force

The Reddy Analytics team members were instrumental in providing irrefutable evidence from signal system data that demonstrated the dramatic and immediate impact of recalibrating “grade timers” on one of the busiest rapid transit systems in the nation. At the time, there was a debate internal to the transit...

Data Analysis, Publications, operating techniques, signal system, subway

Automated Train Identification and Train Position Monitoring at New York City Transit

Like any legacy subway system that first opened in the early 1900s, the New York City subway system operates using technology that dates from many different eras. Although some of this technology may be outdated, efforts to modernize are often hindered by budgetary limits, competing priorities, and managing...

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Design and Implementation of Positive Train Control (PTC)

Development of Real-Time Transit Delay Map Visualization Tool

Subway Service Adjustment in Response to COVID-19 Ridership Changes

Using Real-Time Data to Detect Delays and Improve Customer Communications at New York City Transit

Benchmarking of Key Transit Performance Indicators

Real-Time Estimation of Platform Crowding

Tracing Train Delays to Incident Causes

Service Intervention Recommendation Engine

Train Speed & Safety Task Force

Automated Train Identification and Train Position Monitoring at New York City Transit

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