The experience of using the Underground has changed in many respects over the last century, but some aspects of Tube travel are constant. Peak hours have always been crowded and moving large numbers of people under the city has always been a challenge. The
Underground has often used posters and car cards to discourage anti-social behaviour and promote courtesy and good travel manners. In reality the ideal passenger of Lunt Roberts' 1927 poster whose 'fair average conduct helps the service' probably never existed.