RILA Train Mounted Survey System, Opportunities & Constraints. Trevor Burton UK Programme Manager Fugro RailData

Transcription

1 RILA Train Mounted Survey System, Opportunities & Constraints Trevor Burton UK Programme Manager Fugro RailData

2 RILA Train Mounted Survey System, Opportunities & Constraints Trevor Burton Fugro RailData UK Programme Manager 2

3 Introduction RILA is a suite of train mounted sensors for rapid acquisition of survey data that negates the need for surveyors to be on or near the track in the acquisition of the data. RILA survey data supports a range of topographical survey, gauging and infrastructure monitoring applications for asset management, maintenance and engineering design. Analysis Advice 3

4 Introduction

5 Introduction Advice 5

6 Introduction 2013 RILA Track Trials Wigan to Southport / Manchester Airport 2014 Project based trials Settle to Carlisle/ Carnforth 2015 Gt Western IEP, Norwich in 90, Midland Mainline Electrification, High Output Track Renewals Scotland 2016 Gt Western Route Modernisation, South Wales Electrification, Northern Hub, HOTR LNW, Western & Wales, Anglia and South East 2017/18 Wessex DMU, Crossrail, Transpennine Route Upgrade, MML, Basingstoke to Reading, Ad-hoc Analysis deliveries of existing data & onward Ana7/1lysis Advice processing. 6

7 Introduction Product Acceptance Received from NR Systems Review Panel in 2016 with 9 Safety Related Application conditions. Reviewed & Updated in 2017 to include new system developments and 7 of the 9 SRACs closed. 7

8 Introduction NR Survey Standards NR/L2/TRK/3100 Issue 4, December 2, 2017 Note 3 RILA Track+RILA 360 measurements are always correlated thereby improving the relative accuracy. When modelling objects (using multiple points from the point cloud) the relative accuracy between objects is +/-3mm in X,Y&Z. 8

9 RILA Technology RILA GPS and IMU GPS 5Hz, IMU 300Hz RILA 360 LiDAR Scanner 1Million pulses per second (400 scans each of 2500 pulses) RILA Video System 3 lenses, 170 field of view RILA Track Laser Vision Scanners Static laser split by prism with camera 500Hz 9

10 RILA Track Technology GPS 5 Hz, augmented with post processed RINEX data from CORS network IMU 300 Hz x, y, z α β l Laser Vision 500 Hz 10

11 RILA Track Technology 11

12 RILA Track Technology 12

13 RILA Track Technology RILA run 4 times over each track to ensure maximum track accuracy and compensate for small differences in GPS between measurement runs. Running multiple times in both directions also densifies the LiDAR point cloud. 13

14 RILA Track Technology RILA run 4 times over each track to ensure maximum track accuracy and compensate for small differences in GPS between measurement runs. Running multiple times in both directions also densifies the LiDAR point cloud. 14

15 RILA 360 Technology RILA 360 laser operates simultaneously with the track system and scans objects and features within the rail corridor in a what you see is what you get mode As data is captured multiple times in both directions there are very few occluded or shadowed areas. Complex algorithms combine the various individual runs into a single homogenous cloud. 15

16 RILA 360 Technology 16

17 RILA Video Technology RILA also equipped with an integrated video system. Video is acquired from a three lens camera array with a 170 degree field of view. The video is georeferenced and can be viewed in most media players, via an on-line portal or stored as individual JPGs with associated world Analysis Ana7/1lysis reference files. Advice 17

18 RILA Video Technology 18 Analysis Ana7/1lysis Advice

19 RILA Data Applications RILA is routinely used as a source for topographical survey. RILA track strings are produced from the track data while objects, structures and lineside features can be extracted from the point cloud. 19

20 RILA Data Applications RILA can be used for 6ft passing clearance analysis and structure gauging. NGD compliant SC0 and SCX files being the standard deliverable product. 20

21 RILA Data Applications RILA is currently awaiting approval for platform gauging but can be used to determine Heights and Staggers and measurement of OLE components. 21

22 RILA Deployment RILA can be mounted to dedicated locomotives or on the rear of an in-service passenger service, with the equipment being loaded in less than 2 minutes at terminus stations during turnarounds. 22

23 RILA Deployment 23 Analysis Ana7/1lysis Advice

24 RILA Deployment RILA can be mounted to a range of different rolling stock using custom designed coupler adaptors or to buffered trains via a universal buffer adaptor. Two RILA technicians travel with the equipment in the rear train cab. A RILA Designated Person communicates with signalers and train crew 24

25 RILA Opportunities Clearly defined health and safety benefit No possessions or track access required in the collection of data Thousands of track man-hours saved Survey entire routes in days Collect whole route data and process as required Survey once and use for many different projects/applications Can be mounted to a range of locos and passenger services Assigned NR Band 1A accuracy Acquisitio n Advice 25

26 RILA Constraints & Potential Mitigation Coverage / Completeness GPS loss in tunnels, deep cuttings and in urban corridors supplement with ground control (targets, spheres on spigots etc) or tie in to recent ground topo Train pathing on passenger services at the mercy of the paths given to particular services. Loss of data at stations with multiple platforms. Unlikely to record loops, sidings etc. supplement where necessary with other sources of data (drones, static laser scanning, road/rail or trolley based mobile mapping systems. Analysis Acquisitio n Advice 26

27 RILA Constraints & Potential Mitigation Weather Impossible to survey with lying snow. Potential loss of data in heavy rain. Excessive low sun comprises photogrammetric measurement of Track data introduction of blue lasers Acquisitio n Network Operational Issues TOC and Union matters established procedures and track record Perceived risk to timetable if turnaround tight, wait for next service 27

28 RILA Constraints & Potential Mitigation Data Handling Huge data volumes Gt Western regional project 40Tb store/share in the cloud, deliver/access via web portal. Consider format choices and products carefully. Acquisitio n Typical project point cloud as.las &.POD output as OSGB and Snakegrid Video as individual.jpg frames and as MPEG, DGN, CSV of rail strings, wire runs DGN of topographical survey SC0/SCX/SCP gauging files 28

29 Conclusion RILA can supply clearly defined benefits: Speed of Health and Safety through removal of survey personnel from the track Data that can be used for range of asset management and design applications Mode of acquisition promotes capture once and use many times ethos. Constraints need to be managed accordingly: Relatively small areas of occluded or substandard data compared with track length captured. Operational issues ever present but diminishing with experience and track record Survey specifications need to be prepared with consideration to potential data volumes. Acquisitio n 29

30 We are Fugro For more information, please contact: Trevor Burton fugro.com/raildata

31 Q&A RILA Train Mounted Survey System, Opportunities & Constraints Trevor Burton UK Programme Manager Fugro RailData