u@~$NKLC>F~8}B&$+$i=g $B$h$C$F!"A4D9(B18.2 km $B$H$J$C$?!#F;O)%H%s%M%k$H$7$F$OF|K\0l$ND9$5$G$"$j!"(B $B@$3&$G$b%N%k%&%'!<$N%i%k%@!<%k%H%s%M%k$K 2$BHVL\$KD9$$$H$$$&!#(B $BA4D9!"302s$j!'(B18,597 m$B!"Fb2s$j!'(B18,098 m $B$G$"$k!#(B $BN>B&(B4$B $B4D>u@~$N$&$A!"Bg0f(BJCT - $B9b>>4V$K0LCV$7!"BgH>$N6h4V$G;3 $B2<$rDL$k?eDl%H%s%M%k$G$b$"$k!#:G? $B7z@_$5$l$F$$$k!#ET;T$NCO2 e$j@~(B11,055 m$B!"2<$j@~(B
4K $B%S%G%*(B $B!J(B2$BG\B.(B$B!K(B
$B!!@$3&$G0lHVD9$$F;O)%H%s%M%k(B The longest road-tunnel in the World
This shows the center cave of Laerdal Tunnel in Norway, the longest road-tunnel in the World.
A rented car and myself at the mid-point of over 24000 m. of the road-tunnel
An air is well ventilated and purified and all tunnel environments are very clean, and there is no smell of exhaust gas.
Norway tour 2016
Tunnels in Norway
The Yamate Tunnel carries the Central Circular Route (C2) of the Shuto Expressway in Tokyo, from the Takamatsu
on-ramp in Toshimato near the Ohi Junction in Shinagawa. It has a length of 18.2 kilometers.$B!!(BLying 30 meters
below the surface, about 70 percent of the tunnel was constructed by the tunnel-shield method. The roadway
consists of two lanes in each direction. Nearly all the tunnel lies beneath Yamate Dori street. On completion,
the Yamate Tunnel surpassed the Kanetsu Tunnel through the Tanagawa mountain range, to become the longest
road-tunnel in Japan and the second longest road-tunnel in the world.
The longest road tunnel in Japan
This information was provided by the Smokefree Hotel and Travel.
The article was written in September 2020, by Junhaku Miyamoto, M.D., Ph.D.