Rail Systems - Crossrail Learning Legacy

Rail Systems comprise the many electrical, electronic and other systems necessary for trains to run, they include permanent way (track), traction power (the electricity supply to the train), signalling, communications and several others. Each of these needs to be designed and installed so that they work together safely and effectively. This topic area includes papers and good practice documents on how these systems were designed, installed, tested and commissioned.

RAIL SYSTEMS DOCUMENTS

Document Types

Summary	Publication date	Document Type
Digitisation of Signalling and Train Test Log Observations Topic area: Rail systems At the beginning of the Testing and Commissioning phase Crossrail anticipated 6 months of Dynamic Testing, 5 days a week, and required quick insights to testing observations on site. Existing processes were archaic and it wasn’t easy to get visibility of testing observations from site to management in a timely manner...	05/10/2020	Micro-report
Crossrail Integration Facility and Test Automation Topic area: Rail systems Systems integration has gained a higher level of importance as complex railway projects operate under tighter schedules than ever before and with limited access to tracks to run tests. This paper demonstrates how a fully automated off-site testing facility is extremely valuable to increase efficiency, cost-effectivenes...	02/10/2020	Journal Publication
Installation of rigid overhead catenary in Crossrail tunnels Topic area: Rail systems The Overhead Line Equipment works for the C610 Systemwide Main Works Project concerns the design, procurement of plant, materials and equipment, installation, testing and commissioning of the elementary system installed in the Crossrail Central Operating Section which includes new twin bore single track tunnels, interm...	09/07/2018	Technical Paper
Rigorous assessment of existing overhead line gantries for the Elizabeth line Topic area: Rail systems The Elizabeth line will use above-ground sections of existing Great Eastern and Great Western tracks between Stratford and Maidenhead where new overhead line equipment (OLE) and traction power supply will be installed. The OLE is supported by gantries of various types and configurations. In the case of the Great Easter...	02/07/2018	Technical Paper
Validation of the Tunnel Pressure Signature of the Crossrail Class 345 Train Topic area: Rail systems When a train enters a tunnel, it creates a pressure pulse which is experienced by passengers on the train and which propagates along the tunnel. The pressure pulse results in loads being generated on items of infrastructure, such as platform screen doors and tunnel ventilation equipment. The tunnel pressure signature i...	31/08/2016	Technical Paper
Integration, Testing and Commissioning at Crossrail Topic area: Technical Assurance and Integration Crossrail’s Central Operating Section is characterised by high performance requirements of a metro system with high specified train service throughput. This is realised via multiple interdependent electronic systems which control the movement of trains together with station systems, traction and auxiliary power suppl...	09/07/2018	Technical Paper
Engineering Design of the Platform Edge Screens for Crossrail’s Mined Stations Topic area: Mechanical, Electrical & Public Health This paper covers the engineering design of Platform Edge Screens for the five mined Crossrail stations in central London. Full-height platform edge screens are a signature feature of Crossrail’s mined station platforms, but are unprecedented in London’s tube and rail network. Consequently, their design pr...	09/07/2018	Technical Paper
Maintenance and Cost Analysis on Major Subsurface Rail Projects – Crossrail Topic area: Technical Assurance and Integration The purpose of this case paper is to highlight the maintenance and cost analysis principles on a mega subsurface metro railway project. The paper identifies how crossrail delivered the maintenance through the project life cycle. Its objectives are also to illustrate some of the technical and programme challenges on the...	09/07/2018	Technical Paper

Summary

Publication date

Document Type

Digitisation of Signalling and Train Test Log Observations

Topic area: Rail systems

At the beginning of the Testing and Commissioning phase Crossrail anticipated 6 months of Dynamic Testing, 5 days a week, and required quick insights to testing observations on site. Existing processes were archaic and it wasn’t easy to get visibility of testing observations from site to management in a timely manner...

05/10/2020

Micro-report

Crossrail Integration Facility and Test Automation

Topic area: Rail systems

Systems integration has gained a higher level of importance as complex railway projects operate under tighter schedules than ever before and with limited access to tracks to run tests. This paper demonstrates how a fully automated off-site testing facility is extremely valuable to increase efficiency, cost-effectivenes...

02/10/2020

Journal Publication

Installation of rigid overhead catenary in Crossrail tunnels

Topic area: Rail systems

The Overhead Line Equipment works for the C610 Systemwide Main Works Project concerns the design, procurement of plant, materials and equipment, installation, testing and commissioning of the elementary system installed in the Crossrail Central Operating Section which includes new twin bore single track tunnels, interm...

09/07/2018

Technical Paper

Rigorous assessment of existing overhead line gantries for the Elizabeth line

Topic area: Rail systems

The Elizabeth line will use above-ground sections of existing Great Eastern and Great Western tracks between Stratford and Maidenhead where new overhead line equipment (OLE) and traction power supply will be installed. The OLE is supported by gantries of various types and configurations. In the case of the Great Easter...

02/07/2018

Technical Paper

Validation of the Tunnel Pressure Signature of the Crossrail Class 345 Train

Topic area: Rail systems

When a train enters a tunnel, it creates a pressure pulse which is experienced by passengers on the train and which propagates along the tunnel. The pressure pulse results in loads being generated on items of infrastructure, such as platform screen doors and tunnel ventilation equipment. The tunnel pressure signature i...

31/08/2016

Technical Paper

Integration, Testing and Commissioning at Crossrail

Topic area: Technical Assurance and Integration

Crossrail’s Central Operating Section is characterised by high performance requirements of a metro system with high specified train service throughput. This is realised via multiple interdependent electronic systems which control the movement of trains together with station systems, traction and auxiliary power suppl...

09/07/2018

Technical Paper

Engineering Design of the Platform Edge Screens for Crossrail’s Mined Stations

Topic area: Mechanical, Electrical & Public Health

This paper covers the engineering design of Platform Edge Screens for the five mined Crossrail stations in central London. Full-height platform edge screens are a signature feature of Crossrail’s mined station platforms, but are unprecedented in London’s tube and rail network. Consequently, their design pr...

09/07/2018

Technical Paper

Maintenance and Cost Analysis on Major Subsurface Rail Projects – Crossrail

Topic area: Technical Assurance and Integration

The purpose of this case paper is to highlight the maintenance and cost analysis principles on a mega subsurface metro railway project. The paper identifies how crossrail delivered the maintenance through the project life cycle. Its objectives are also to illustrate some of the technical and programme challenges on the...

09/07/2018

Technical Paper