Two of my papers were accepted for the 2020 TRB Annual Meeting:

Reducing Delays on High-density Railway Lines: Crossrail Case Study

Giorgio Medeossi and Andrew Nash – Monday January 13 – 10:15 AM- 12:00 PM – Convention Center, 144A

The paper describes development of a new timetable designed to reduce delays on the existing Shenfield-London high density regional rail line. The project combined detailed railway operational data with Oyster Card data to identify the root cause of delays and develop timetable improvements. The alternative timetable was tested and refined using stochastic simulation. The new timetable was placed in service during 2016 and led to a significant reduction in delays: punctuality within 5-minutes of scheduled arrival time increased by 6.2% during the most critical hour of the morning peak period.

A Framework for Capturing the Business Benefits of Railway Digitalization

Andrew Nash, Felix Laube and Samuel Roos – Tuesday January 14 – 1:30 PM – 3:15 PM – Convention Center, Hall A

This paper outlines a framework for changing railway systems and processes to help railways capture the full business benefits of digitalization. Economic research shows that businesses need to make fundamental changes to their systems and processes if they are to take full advantage of new technology. The slow implementation of digitally based signaling systems such as ETCS and PTC highlights the need for fundamental change in the railway industry to more aggressively implement new technology – and obtain the full benefits of this technology. The proposed framework integrates an improved and up-to-date understanding of customer needs with a much more efficient and customer-oriented production process. It is designed to make use of today’s powerful data collection, communications and analysis technologies rather than applying new technology to old processes. The proposed framework has been developed based on earlier research results and practical experience. The paper is intended to spur discussion.