PRIMER BORRADOR DEL FORMATO

8.2 Train Operation Safety Facilities

8.2.1 Construction of Refuge Siding

8.2.1 Construction of Refuge Siding

(1)

followings: followings: a.

a. Location where more than two trains enter or leave at the same time, andLocation where more than two trains enter or leave at the same time, and there will most likely occur a conflict among them in the form of the trains there will most likely occur a conflict among them in the form of the trains standing as obstacles in the running direction with one another.

standing as obstacles in the running direction with one another.  b.

 b. Location where main line or important siding level-crosses or turns out of theLocation where main line or important siding level-crosses or turns out of the other main line and some protective measures should be taken between the other main line and some protective measures should be taken between the trains or for the train against the rolling stocks on these lines.

trains or for the train against the rolling stocks on these lines. c.

c. Location where there exists a possibility of the rolling stock within the yardLocation where there exists a possibility of the rolling stock within the yard  premises

 premises moving moving excessively, excessively, resultantly resultantly causing causing an an obstacle obstacle to to the the other other  trains or rolling stocks.

trains or rolling stocks. d.

d. Location where some protective measures need be arranged to the trains or Location where some protective measures need be arranged to the trains or  rolling stock in the movable bridge.

rolling stock in the movable bridge. e.

e. Location where construction of refuge siding is considered essentiallyLocation where construction of refuge siding is considered essentially required to avoid the obstacle to be caused in between the sidings by the required to avoid the obstacle to be caused in between the sidings by the rolling stock moving excessively.

rolling stock moving excessively. (2)

(2)  Notwithstanding  Notwithstanding the the preceding preceding specifications, specifications, in in any any of of the the following following cases,cases, construction of safety side track is not required.

construction of safety side track is not required. a.

a. When ATC or ATS-P system has been incorporated/installed.When ATC or ATS-P system has been incorporated/installed.  b.

 b. When the signal in front of the signal to be protected is equipped with theWhen the signal in front of the signal to be protected is equipped with the warning device to show the permissive signal.

warning device to show the permissive signal. c.

c. When the clearance of more than 100m for excessive moving has beenWhen the clearance of more than 100m for excessive moving has been  provided in front of the signal or the train stop sign

 provided in front of the signal or the train stop sign, besides ATC system., besides ATC system. (3)

(3)  Notwithstanding the  Notwithstanding the specification specification in 48.(1) in 48.(1) above, in above, in the event the event that even that even thoughthough it were a location corresponding to 48.(1).c), the clearance of more than 50m for  it were a location corresponding to 48.(1).c), the clearance of more than 50m for  excessive moving have been provided in front of the shunting signal or the excessive moving have been provided in front of the shunting signal or the rolling stock stop sign, or the maximum speed within the yard premises has been rolling stock stop sign, or the maximum speed within the yard premises has been

set at less than 25km/h, construction of the safety side track may be omitted. set at less than 25km/h, construction of the safety side track may be omitted. (4)

(4) In case of the specification of 48.(1).e) hereof, if refuge siding is impossible toIn case of the specification of 48.(1).e) hereof, if refuge siding is impossible to construct due to such a topographic reason, catch points may be used as an construct due to such a topographic reason, catch points may be used as an alternative solution.

alternative solution.

8.2.2 Fixing of Buffer Stop

8.2.2 Fixing of Buffer Stop

(1)

(1) Buffer stop shall be fixed according to the followings. Furthermore, theBuffer stop shall be fixed according to the followings. Furthermore, the standard shape of the buffer stop shall be as per the following figure.

standard shape of the buffer stop shall be as per the following figure. a.

a. First class buffer stopFirst class buffer stop i)

i) End of refuge siding track End of refuge siding track  ii)

ii) End of line for operation of switch back, etc.End of line for operation of switch back, etc. iii)

iii) Location considered necessary, any other than i) and ii)Location considered necessary, any other than i) and ii)

4.5 m 4.5 m A A A' A' Ballast Ballast Beginning edge Beginning edge of buffer stop of buffer stop Plan Plan Beginning edge Beginning edge Rail Face Rail Face Screened gravel Screened gravel 30 m 30 m 1:1.5 1:1.5 Vertical section Vertical section A – A’ A – A’ Rail Face Rail Face 1:1.5 1:1.5 500 mm 500 mm Center line Center line Cross section Cross section

Figure 8.2.2-1 First class buffer stop Figure 8.2.2-1 First class buffer stop

 b.

 b. Second class Scotch block (including the buffer stopping apparatus with theSecond class Scotch block (including the buffer stopping apparatus with the Same or more buffering capacity with Second class buffer stop)

Same or more buffering capacity with Second class buffer stop) i)

i) End of main track as “Final stop”End of main track as “Final stop” ii)

ii) End of important sidingEnd of important siding iii)

iii) Case in which the location corresponds to the preceding item and hasCase in which the location corresponds to the preceding item and has sufficient allowances for excessive moving, or has a justification for use sufficient allowances for excessive moving, or has a justification for use

of second class buffer stop. of second class buffer stop.

+ 1.00 + 1.00 PLAT 12X65X240 mm PLAT 12X65X240 mm BEUGEL BEUGELφφ19 mm19 mm + 0.75 + 0.75 0.70 0.70 1.20 1.20 1.20 1.20 0.70 0.70 0.70 0.70 0.700.70 ± 0.00 ± 0.00

Figure 8.2.2-2 Second class buffer stop (side view) Figure 8.2.2-2 Second class buffer stop (side view)

c.

c. Third class I buffer stopThird class I buffer stop End of depot or similar lines. End of depot or similar lines.

Figure 8.2.2-3 Third class type-I buffer stop (side view) Figure 8.2.2-3 Third class type-I buffer stop (side view)

d.

d. Third II buffer stopThird II buffer stop

End of any other side track than a) through c) End of any other side track than a) through c) e.

e. Fourth class buffer stopFourth class buffer stop

Location where buildings, high embankments, cuts, etc are constructed and Location where buildings, high embankments, cuts, etc are constructed and serious damages will likely occur, should trains or rolling stock be wrongly serious damages will likely occur, should trains or rolling stock be wrongly stopped.

Figure 8.2.2-4 Third class type-II buffer stop (side view) Figure 8.2.2-4 Third class type-II buffer stop (side view) (2)

(2) Regarding Fourth class buffer stop, the same standard may be adopted asRegarding Fourth class buffer stop, the same standard may be adopted as embankment and concrete block structure.

embankment and concrete block structure. (3)

(3) Scotch block shall be installed at the point of 2m inside the clearance post of theScotch block shall be installed at the point of 2m inside the clearance post of the side track corresponding to any of the followings. Moreover, the shape of the side track corresponding to any of the followings. Moreover, the shape of the scotch block shall be as per the following figure.

scotch block shall be as per the following figure. a.

a. Side track where there exists a possibility of the rolling stocks parked thereSide track where there exists a possibility of the rolling stocks parked there moving of themselves into main track line.

moving of themselves into main track line.  b.

 b. Side track where there exist a possibility of the cars sliding onto the traverseSide track where there exist a possibility of the cars sliding onto the traverse or turntable.

or turntable. c.

c. Side track where scotch block installation is considered essentiallySide track where scotch block installation is considered essentially necessary, besides (1) and (2) above.

necessary, besides (1) and (2) above.

aa aa

(a)