SPEAKER 3 - RAIL "Georectification of Level Crossings" Alissa Twinning Data Technician Network Rail Alissa is a Geospatial Technician at Network Rail. Since joining in 2011 Alissa has worked on a plethora of projects, including; Level Crossing Inspections, Crossrail, HS2, Thameslink and the Network Model Development Project. Alissa’s involvement within these projects range from providing geo technical support, data provision, to quality assurance of relevant datasets. Alissa has been recognised at a corporate level regarding her contribution to efficiency and health and safety improvement within Network Rail, the work she has undertaken has already saved tens of thousands of man hours of risky manual inspection on the network.

1. Apr 1, 2014 /
Georectification of Level Crossings

2. Apr 1, 2014 /

3. Apr 1, 2014 /

4. Apr 1, 2014 /
ORR, Network Rail and Level Crossings
The ORR inspects the industry's management of level crossings to check that
legal safety requirements are being met
As part of the legal requirements set out by the ORR Network Rail is not only
responsible for holding data on open level crossings, we are also required to
maintain a dataset that includes all closed and mothballed level crossing sites
on the network.

5. Apr 1, 2014 /
Network Rail and Level Crossing Databases
Historically there has not been a single database to store all level crossings due
to different standards level crossings are regulated and functions surrounding
them.
Ellipse- maintenance database that holds all open level crossings
SMIS- Hazard database, containing all open level crossings and their hazard
score
ALCRIM- holds all level crossings- both open and closed
Combining all these datasets created a list of 11,000 level crossings

6. Apr 1, 2014 /
The problem

7. Apr 1, 2014 /
Method 1

8. Apr 1, 2014 /
Method 1

9. Apr 1, 2014 /
Method 2

10. Apr 1, 2014 /
Method 2

11. Apr 1, 2014 /
Questions?