From trams and trolleybuses, all of the way up to the new low emission buses launched this year, buses certainly have undergone a transformation.
Take a stroll down memory lane:
![Evacuees queue up for the buses](https://www.portsmouth.co.uk/webimg/b25lY21zOjg5YWY5NzM5LTgxNjItNDA5Zi1iYzIzLTNiNTdlY2VjNmQxODo3NGViNWUzYy0xZTViLTRjYzgtOGM3YS01NmE4MjBmNzlhYTk=.jpg?crop=3:2&trim=&width=800)
![Car entering the Town Hall Square in Portsmouth, from the north. When trolley-buses were introduced the engineers only measured headroom over the tramway tracks and then found that a trolleybus would not pass under the bridge to the right of the picture (where the sailor boy is standing) so the road had to be lowered . (Photo by Hulton Archive/Getty Images)](https://www.portsmouth.co.uk/webimg/b25lY21zOjhkMzNkYTg1LTUzYzUtNGU3ZS05ZDA1LWYxZjMyYmYyYTA1NDpkYzRjYWJlNi02NDJkLTRhZDctOGIwZS0wMzIwZmQ4YzczZGM=.jpg?crop=3:2&trim=&width=800)
10. 1901
Car entering the Town Hall Square in Portsmouth, from the north. When trolley-buses were introduced the engineers only measured headroom over the tramway tracks and then found that a trolleybus would not pass under the bridge to the right of the picture (where the sailor boy is standing) so the road had to be lowered . (Photo by Hulton Archive/Getty Images)Photo: Hulton Archive
![Bus at Bristol Road Southsea in 1980](https://www.portsmouth.co.uk/webimg/b25lY21zOmM0NmM3YjZiLTAwZmYtNDAxMi04N2RjLTcyZGMzNzllMmI1MzowZTNmZTgxNi01YjAxLTQ0MzEtYjQ4Ny1hNzcwMjgwMzcwNzc=.jpg?crop=3:2&trim=&width=800)
![Portsmouth’s first 10 motor buses, shown here arriving outside the town hall in July 1919, were J-type Thornycrofts engineered at Basingstoke and with bodies made by Wadham Bros of Waterlooville. They were in service for about a decade, but the solid tyres, stiff suspension and rough roads so damaged their bodywork that by about 1926
they were refitted with second hand bodies from older London buses.](https://www.portsmouth.co.uk/webimg/b25lY21zOjQyOGI3ODkwLWFmNmUtNDQ4My05YTBlLWZlMzg2OWFmOWRhZDo0ZGY0NDAwYy0yZmRjLTQzYTMtYjdlYS1hMjBmODQ4NGY5YjA=.jpg?crop=3:2&trim=&width=800)
12. 1919
Portsmouth’s first 10 motor buses, shown here arriving outside the town hall in July 1919, were J-type Thornycrofts engineered at Basingstoke and with bodies made by Wadham Bros of Waterlooville. They were in service for about a decade, but the solid tyres, stiff suspension and rough roads so damaged their bodywork that by about 1926 they were refitted with second hand bodies from older London buses.Photo: -