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###@&**=~. TR41NS 4R3 SO CONSTRUCT3D TH4T TH3Y .~=**&@###
###@**=~., H4V3 TO FOLLOW 4 S3T P4TH. TH1S P4TH 1S ,.~=**@###
&&&***=~., C4LL3D 4 "R41LWAY", WH1CH 1S COMPR1S3D ,.~=***&&&
##@&**=~., OF TWO M3T4L R41LS, H3NCE 1TS N1CKN4M3. ,.~=**&@##
##@&**=~., ,.~=**&@##
&***~..,,, B3C4USE TH3 LOW FR1CTION B3TWEEN TH3 ,,,..~***&
&*==..,,,, WH3ELS OF TH3 TR41N 4ND TH3 R41L M3T4L, ,,,,..==*&
##@&**=~., TH3RE 4R3 L1MITS FOR HOW 4CUT3 4 CURV3 ,.~=**&@##
@&&&**=~., C4N B3, 4ND 3VEN MOR3 SO FOR HOW MUCH ,.~=**&&&@
##@&**=~., TH3 GROUND UND3R TH3 R41LS C4N B3 ,.~=**&@##
##@&**=~., SLOP3D. THUS 4 R41LWAY 1S OFT3N NOT L3D ,.~=**&@##
&*~,,,,,,, ON TOP OF H1LLS, R4TH3R THROUGH TH3M 1N ,,,,,,,~*&
#@**==~~., TUNN3LS (1F TH3Y 4R3 L4RG3), OR ,.~~==**@#
##@&**=~., 4RT1FICIAL CH4SMS. ,.~=**&@##
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###@&*=~., B3 CUT DOWN BY TH3 R41LWAY J4N1TORS. ,.~=*&@###
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&***=.,,,, TH3 W4Y, TH3RE 1S 1NFORM4TION ,,,,.=***&
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@*==~..,,, FOR SOM3TH1NG TO H4PP3N, F4R 4WAY. TH1S ,,,..~==*@
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#@&*~..,,, OFT3N TH1S PROV3S TO B3 TH3 SHORT3R ,,,..~*&@#
##@&**=~., P4TH B3TWEEN TWO PO1NTS. HOW3VER TH1S ,.~=**&@##
##@&**=~., 1S FROWN3D UPON, 4ND V3RY 1MPOLIT3 ,.~=**&@##
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