Upvote:2
Russia is Type B:
Зона действия знаков распространяется от места установки знака до
ближайшего перекрестка за ним, а в населенных пунктах при отсутствии
перекрестка — до конца населенного пункта
https://www.gazu.ru/znaki/3/3.24/
EDIT: Come to think of it. How would cars entering from intersection know the speed limit if it's not indicated? You will need a speed sign on every intersection anyway, otherwise you will have cars with different idea about speed limit on the same road, which is problematic.