I have traveled over many countries using a train, in Canada, US, India, Thailand, Taiwan, Australia, New Zealand and European countries.
However, nowadays, I have never experienced to hear the announcement
to guide a smoking room or booth in a train.
It might work as promoting a smoking during his train trip until a passenger arrives at the destination.
In 2018, about 50 countries, including the above-mentioned countries, prohibit smoking inside of the train. It will put our people in Japan shamed
at the coming 2020 Olympic game. When I was on the Shinkansen platform at Kyoto JR Station, which is the representative of Japan's old capital railway station,
I heard a loud announce voice echoing in the ears just before the train entering to the station; Smoking rooms are located at the Car3, Car7, Car15
for regular vehicles, and Car10 for a Green Car.
This action would cause discomfort for travelers from overseas! Such an excessive support of smoking behavior leads Japan as a country preferential to a smoker, and it counters the positive impression of Kyoto. A smoking booth which brings a health hazard to tourists should be abandoned.
We plan to use Tokaido Shinkansen in the next April, although we definitely select seats in the vehicle 5, because it is relatively far from smoking rooms.