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SaRS Young Professionals Conference, London, UK Kay Rigby (Risktec Solutions) [email protected] 21 st September 2017 Assessment of Vehicle Incursions onto a Railway Station

Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

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Page 1: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

SaRS Young Professionals Conference, London, UK

Kay Rigby (Risktec Solutions) [email protected]

21st September 2017

Assessment of Vehicle

Incursions onto a Railway

Station

Page 2: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

Overview

Risks Posed by Station Vehicle Incursions

Average 28 incursion per year over all 2,534 GB stations (1.1%)

1 incident at each station every 89 years

Vehicle enters station

Minor/major injuries to passengers & vehicle occupants

Vehicle fouls line without train strike

Train delays

Injuries to vehicle occupants

Vehicle fouls line and struck by train

Derailment

Multiple major injuries/fatalities

How can we reduce the risks posed by vehicle incursions?

Assessment of Vehicle Incursions onto a Railway Station2 21/09/2017

Kempton Park Station, 2015

Page 3: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

3

Number of Road Vehicle Incursions

at Stations (2007 – 2015) (RSSB)

Collision with train

5%

Foul of the line

(not struck)53%

Not foul of the line42%

Vehicle Incursion Outcome by Final

Resting Place (2005 – 2015) (ASPR)

Quantitative Assessment

Average Number of Collision Fatalities

per Year (1976 - 2001) (ORR)

Assessment of Vehicle Incursions onto a Railway Station21/09/2017

27

31

35

24

31

21

26 27

33

2007 2008 2009 2010 2011 2012 2013 2014 2015

Page 4: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

Kirkstall Forge

New commuter station near Leeds (Opened 19th June 2016)

Low road usage and 30mph speed limit

Sharp corners (used by road planners to reduce speeds)

Lowered kerbs, “open” feel to station

ISA raised concerns of potential vehicle incursion onto station and track

4 Assessment of Vehicle Incursions onto a Railway Station21/09/2017

Page 5: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

Kirkstall Forge Incursion Sites

Vehicle approaches bottom right corner too quickly

5 potential incursion sites across the station

5 Assessment of Vehicle Incursions onto a Railway Station21/09/2017

Page 6: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

Kirkstall Forge Incursion Sites

Site 1

6 Assessment of Vehicle Incursions onto a Railway Station21/09/2017

Bike sheds and fence are not crashworthy – vehicle may travel onto the tracks

Page 7: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

Kirkstall Forge Incursion Sites

Sites 2 & 3

Fences are not crashworthy – vehicle may travel between/behind substation and onto track

Lowered kerbs

7 Assessment of Vehicle Incursions onto a Railway Station21/09/2017

Page 8: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

Kirkstall Forge Incursion Sites

Site 4

Bench and fence is not crashworthy – vehicle may travel under the stairs and onto the platform/track

8 Assessment of Vehicle Incursions onto a Railway Station21/09/2017

Page 9: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

Kirkstall Forge Incursion Sites

Site 5

Adequately protected by existing bollards

9 Assessment of Vehicle Incursions onto a Railway Station21/09/2017

Page 10: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

ALARP Review

Based on NR Standard - risk assessments of bridges and neighbouring sites

Evaluate each incursion site based on:

Vehicle trajectories

Existing mitigations

Design “gaps”

Analyse each mitigation measure based on:

The new mitigation measure must be able to withstand:

Up to 2.5 tonnes (e.g. car or van) travelling at 25 mph

Up to 13 tonnes (e.g. bus) travelling at 10 mph

10 Assessment of Vehicle Incursions onto a Railway Station21/09/2017

Page 11: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

ALARP Review

Potential Mitigation Measures – Incursion Site 2 (Between the Substations)

11 Assessment of Vehicle Incursions onto a Railway Station21/09/2017

Page 12: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

ALARP Review

12

Mitigation

MeasureBenefit Effort

ALARP

ReviewNotes

Droppable

bollardsHigh High Consider

Deep foundations

may disturb buried

services.

Can be dropped

when access is

required

Concrete

lane guard

barrier

Medium Medium Consider

May not take the full

force of a vehicle

impact, may bend or

move

Large

concrete

planters

High Low Implement

Shallow foundations

which will not disturb

buried services.

Can be easily moved

when required by

maintainer

Potential Mitigation Measures – Incursion Site 2 (Between the Substations)

Assessment of Vehicle Incursions onto a Railway Station21/09/2017

Page 13: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

Vehicle Impacts

Please view this Youtube video demonstrating the moment of impact between a vehicle and a large concrete planter

13 Assessment of Vehicle Incursions onto a Railway Station21/09/2017

Page 14: Assessment of Vehicle Incursions onto a Railway Station · 2018-10-24 · Bike sheds and fence are not crashworthy –vehicle may travel onto the tracks. ... Based on NR Standard

Conclusion

The risk of station vehicle incursion is relatively low – 28 incursions per year

5% of all incursions result in a vehicle being struck by a train

Consider vehicle incursions during station design

Communication between railway and highway authorities

Crash-worthy street furniture can reduce the risk even further – a wide variety available

14 Assessment of Vehicle Incursions onto a Railway Station21/09/2017