You don't need to pay a travel charge in hotels of Shinagawa ward,Tokyo.
But additional ￥2,000 as a travel charge in some hotels of Shinagawa ward which is outside Yamanote line.
Please see 「TOKYO 23 SPECIAL WARD」 about YAMANOTE line.
HOTELS MAP IN SHINAGAWA WARD A～
Free ： A travel charge
2,000yen ： A travel charge