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Safety System for Track Maintenance Vehicle Operation of Shinkansen of Shinkansen Atsushi SASAKI Atsushi SASAKI Atsushi SASAKI Atsushi SASAKI Safety Research Laboratory Research and Development Center East Japan Railway Company

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Page 1: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Safety System

for Track Maintenance Vehicle Operation

of Shinkansenof Shinkansen

Atsushi SASAKIAtsushi SASAKIAtsushi SASAKIAtsushi SASAKISafety Research Laboratory

Research and Development Center East Japan Railway Company

Page 2: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

JR East Shinkansen Network

Joetsu Shinkansen((((303.6km))))

Akita Shinkansen

((((127.3km))))

Yamagata Shinkansen

((((148.6km))))

山形山形山形山形山形山形山形山形

(Mini Shinkansen)*

(Mini Shinkansen)*

ShinjoShinjo

Yamagata

AkitaAkita

Extension to Toyama

Morioka

Extension to

Shin-Aomori

To Shin-Hakodate

Shin-Aomori

Hachinohe

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 2

新潟Tohoku

Shinkansen

((((631.9km))))

山形山形山形山形山形山形山形山形

NowMini Shinkansen

1052.9km + 275.9kmRoute lengthRoute lengthRoute lengthRoute length

Mini Shinkansen1052.9km + 275.9kmRoute lengthRoute lengthRoute lengthRoute length

Mini Shinkansen 1194.4km + 275.9kmRoute lengthRoute lengthRoute lengthRoute length

Mini Shinkansen 1194.4km + 275.9kmRoute lengthRoute lengthRoute lengthRoute lengthFuture

Niigata

Yamagata

Omiya

TokyoTokyo

Extension to Toyama

(Hokuriku Shinkansen)

To Toyama Joetsu

Sendai

Fukushima

Ueno

NaganoNaganoTakasaki

*Mini Shinkansen: Conventional lines converted for through Shinkansen service

Nagano Shinkansen((((117.4km))))

Page 3: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Railway track maintenance

Extensive maintenance equipment.

Reasons:

Separation train operation and rail maintenance.

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 3

Trains run up to 275 km/h.

Total prevention of collisions.

Goal:

Page 4: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Track Schedule

Maintenance Service HoursTrain Operation Hours

6:00 0:00 6:0012:00

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 4

Transition

Inspection Vehicle Operation Hours

Page 5: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Inspection Vehicle Functions

- the end of maintenance service hours, and

Inspection vehicles verify:

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 5

- whether any obstacles were left on train lines.

Page 6: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Conventional Inspection Vehicle

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 6

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Reasons for improvement

(1) Fewer maintenance service hours.

(2) Fewer personnel willing to work at night.

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 7

(3) Rising costs.

Page 8: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

New inspection car specifications

- Detection of obstacles on tracks

- Automated operation

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 8

1995 ~ 1997 Rework for practical application

1991 ~ 1995 Basic development

Time frame :

Page 9: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

New inspection Vehicle

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 9

Page 10: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Key Technologies

- Built-in automated control system

- Obstacle detection by computer image

processing

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 10

- Built-in automated control system

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Obstacle Detection System

Searchlight

Obstacle detection system

Rail tracking system Track data

Camera mount

CCD camera

OHP-11

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 11

Special Searchlight

Computer image processing

for curved trackExample of obstacle detection

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Architecture of On-Board System

Searchlight

Obstacle detection system

Rail tracking unit

Track dataSpeed data

Camera mount

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 12

Monitoring unit Automatic operation system Master controller

Drive unitKilometer

post reader

Brake control unit

Track dataSpeed data

Automatic ●●●● ○○○○Manual

Brake control unit

Drive unit

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Additional features

Swivel-type control center Remote Control

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 13

Swivel-type control center

Emergency procedure panel

Remote Control

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0:00

Train Operation Hours

Maintenance Work in Shinkansen

Maintenance Base Wait to start “maintenance service hours”.

Start “maintenance service hours”.

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 14

Inspection Vehicle6:00 Inspection Vehicle Operation Hours

Maintenance Service Hours

Train Operation Hours

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0:00

Train Operation Hours

Safety System by Radio

Maintenance Service Hours

Handy Terminals

of COSMOSMaintenance Service Hours

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 15

Track Possession Area

6:00

Inspection Vehicle Operation Hours

Train Operation Hours

Trailing-Point MovementCollision

Inspection VehicleDetection of thing left behind

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Morioka

Hachinohe

Background of Development

Collision of maintenance vehicle in Shinkansen

1. August 6, 1993 : Tokaido Shinkansen in JR Tokai

The operation of Shinkansen stopped at half a day.

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 16

Shin-Osaka

Hakata

Shin-Yatsushiro

Kagoshima-Chuo

Tokyo

Nagano

Niigata

2. Septembe 3, 1998 : Sanyo Shinkansen in JR West

3 persons were injured

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b

Position sensing

Data communication

ab

Data calculation

Approaching

The Function of Safety System for Track Maintenance Vehicle

Collision prevention function

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 17

Warning

ab

Braking

Approaching without braking

automatically

Page 18: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

A track

maintenance

vehicle

transceiverGPS

antenna

A track

maintenance

vehicle

Position Detection System for Maintenance Vehicle

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 18

torque

converter

・It corrects the

position error every

1 kilometer

・It placed

every 1

kilometer

gear

Speed sensorkilometer post

detectorkilometer post

non-contact

sensors

Page 19: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Operation Image (Route setting〜Route restoring)

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 19

移動限界基 地

進路未設定 76km980m 0km/h

0km039m

0:14

上 越

Radio base Programmed

Route Control

HT

Maintenance work management system

設定完了

0km663m

南保基~上り2番

setComple

-tion

Turning of

switch

Page 20: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Operation Image (Route setting〜Route restoring)

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 20

移動限界本 線

77km115m 15km/h

0km528m

0:20

上 越

南保基~上り2番

Radio base

HT

restoreCompl

e-tion

77 km127 m

0 km 516 m

復位位置進入 77km320m 0km/h

0km323m

南保基~上り2番復位完了進路未設定

Programmed

Route Control

Maintenance work management system

Page 21: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Example of Cab Monitor Display

The yard track layout

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 21

Lives position of

track maintenance vehicle Setting route section (line)

(approved moving area)

Setting route section(index)or information massage

Kilometer position of track

maintenance vehicle

Speed

Limit object Remainder distance

Organization information

Page 22: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Japan

Tokyo

Hachinohe

Niigata

Sendai

Morioka

CONCLUSION

Joetsu Shinkansen

Tohoku Shinkansen

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 22

East Japan Railway

Tokyo

Nagano

Takasaki

Nagano Shinkansen

New Type of Transceiver under development

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Thank you very much for kind attention.Thank you very much for kind attention.Thank you very much for kind attention.Thank you very much for kind attention.

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 23

Thank you very much for kind attention.Thank you very much for kind attention.Thank you very much for kind attention.Thank you very much for kind attention.

Page 24: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 24

Page 25: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Shinkansen safety

2. Elimination of level crossings.

1. Automatic Train Control (ATC).

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 25

3. Highly reliable equipment.

4. Optimal maintenance system.

Page 26: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Track Possession Area

0:00

Train Operation Hours

Safety System by Radio

Maintenance Work in Shinkansen

Handy Terminals

of COSMOS

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 26

Inspection Vehicle6:00

Inspection Vehicle Operation Hours

Maintenance Service Hours

Train Operation Hours

Trailing-Point Movement PreventionCollision Avoidance

Page 27: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

In the Station

Portable Receiver

Transceiver of Work Area

Ground coil Positional correction

Collision avoidance Trailing-point movement prevention

Vehicle Transceiver

Outline of Safety System for Track Maintenance Vehicle

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 27

Displayed on the cab monitor (track layout, lives position, route information) Improvement of man-machine interface

・・・・Calculation distance + Correction of Ground coil = Position Detection

・・・・Data communication by radio (speed, position and direction)Data communication by radio (speed, position and direction)Data communication by radio (speed, position and direction)Data communication by radio (speed, position and direction)

・・・・Collision avoidance function

・・・・Prevention function of going into Work Area

・・・・Approach warning function for track engineer

・・・・Import routing information from Handy Terminal

・・・・Database including turnout positions

・・・・Recognition of lives position and setting routeProvide warning and braking by calculating

relative distance and relative speed ・・・・Automatically stop before a non-approved area

・・・・Advancement prevention function outside approved area

・・・・Trailing-point movement prevention function

Page 28: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Detecting Obstacles 400 m ahead

Detection System for Obstacle on the Shinkansen track

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 28

Page 29: Safety System for Track Maintenance Vehicle Operation of ...international-railway-safety-council.com/wp... · Safety System for Track Maintenance Vehicle Operation of Shinkansen Atsushi

Safety Research LaboratorySafety Research LaboratorySafety Research LaboratorySafety Research Laboratory 29