Expanded Seat / subway seat

Usually, subway seats are cramped. It looks more cramped when only men take up all the seats. Is there any way to expand the subway seat with limited space? Here is a way to give more space to subway seats. ‘Expanded seat’, turning at an angle little bit, could provide more space to users. With the new concept of seat, people who usually feel cramped and stuck between others besides them on the seat could have more space and feel comfortable.