Fun!
Here are my submissions:
Entry 1 Shigetomi JCTYour casual cloverleaf highway interchange.
Pak128 + Addons
Entry 2 Hiroki-Sesekushi Suspension BridgeA large suspension bridge connecting the cities of Hiroki and Sesekushi.
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Entry 3 Kaimon StationThis is a combination of a local and commuter line. On the top is the non-electrified Nozomi Railway Line. and on the bottom is the Electrified Mizumori Yamamori Line.
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Entry 4 Usuki StationA small one platform local station along the Nozomi Railway Line. The national road going alongside it.
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Entry 5 Wakita StationThe Terminus of the Nozomi Railway Line. There is a train depot on the lower left and it has a small station house (Which I was pretty proud of, small but looking good

)
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Entry 6 Ishino Station areaThis area is in the middle of the Nakahara Metropolitan Area. The Mizumori Yamamori and Main Lines go through Ishino Station with 4 tracks. (Outside for the Mainline and inside for the Yamamori Line). The Mizumori Nogaki line goes under the tracks of the Yamamori line and Mainline. The Nakahara Metro Tokuma line can be seen on the elevated tracks. A small detail is a single track connecting the Nogaki and Yamamori/Main Lines.
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Entry 7 Highway Exit KurotakiThe rural highway exit near Kurotaki.
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Entry 8 Takaono StationWell another station along the Nozomi Railway Line, this time it is a station where trains can cross each other.
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Entry 9 Shigetomi StationThis is quite a large station. On both sides, it has a large bus terminal and the station is used by trains on both the Mizumori Yamamori Line (North) and the Akiwa Kawdai Line (South).
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Entry 10 Miyama StationThis is a large station, for the Akiwa Kawadai Line, the Akiwa Senda Main Line and the Akiwa Senda Shinkansen. It has a large bus terminal with 2 floors on the left.
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Entry 11 South-East TokiwaHere you can see New Tokiwa Station on the left, Tokiwa Station on the top and Tokiwa East Station on the right. Connecting New Tokiwa and Tokiwa East is a BRT bus line which continues onto Yukijin outside the right of the screenshot.
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Entry 12 Yoshida StationA 5 layered Station Complex. It contains platforms for the Harutetsu Tatsumi Line (2F), Harutetsu Matsudome Line (2F), Harutetsu Miyanokoshi Line (1F), Harutetsu Katamata Line (1F), Sakura Main Line (B1F), Sakura Kamariya Line (B1F), Haruei Yoshigasaki Subway Line (B2F), Haruei Imichi Subway Line (B3F) and the Haruei Harumi Subway Line (B3F).
pak.nippon + AddonsAbove ground:

Underground:
Entry 13 Kanegasaki StationThe endpoint of the Harutetsu Kamae Line and the Haruei Yoshigasaki Subway Through Line.
pak.nippon + Addons
Entry 14 Kinashi IslandThe biggest Island in the Kasukabe Bay. The endpoint of the Harutetsu Kinashijima Line.
pak.nippon + Addons
Entry 15 Kasukabe StationBiggest station on the map here the following lines stop: Harutetsu Harumi Line, Harutetsu Matsudome Line, Harutetsu Miyanokoshi Line, Harutetsu Harugai Line, Harutetsu Kinashijima Line, Harutetsu Kamae Line, Harutetsu Wakamatsu Line, Sakura Main Line, Sakura Tatsumi Line, Sakura Kamariya Line, Haruei Harumi Subway Line, Haruei Harukama Subway Line, Haruei Takamichi Subway Line.
pak.nippon + AddonsAbove ground:

Underground

I've put the underground and above ground of the same place together for convienence.
My pak128 submissions are from my big Korino Map and the nippon ones are from a smaller contest map (Kasukabe Metropolis) I did.
Here you can download all the screenshots