A giant billboard in Fukuoka, Japan. I think it means hold onto the overhead strap when standing on the bus!

A giant billboard in Fukuoka, Japan in March 2015. I think it means hold onto the overhead strap when standing on the bus!

Sticker on a car window in Parkhurst, Johannesburg, South Africa. Cyclists stay alive at 1.5 metres

Sticker on a car window in Parkhurst, Johannesburg, South Africa in February 2015. Cyclists stay alive at 1.5 metres

A 1.5 metre sticker on a car at Camps Bay, Cape Town, South Africa. A pedal power safe cycling initiative

A 1.5 metre sticker on a car at Camps Bay, Cape Town, South Africa in February 2015. A pedal power safe cycling initiative

Waiting zone for female passengers at night at the train station at Hualien, Taiwan

Waiting zone for female passengers at night at the train station at Hualien, Taiwan in August 2010

Tram safety

Beware of trams sign in Melbourne in October 2012

Safety first

A safety first sign on a construction project on Sule Pagoda Road in Yangon Burma in August 2010