In this paper, we design and develop a portable smart wireless control system for pedestrian crossing areas to manage the traffic automatically and allow the pedestrian, like school children, to cross ...

It's a win-win, and it's why everything on iStock is only available royalty-free — including all Green Light - Stoplight images and footage. What kinds of royalty-free files are available on iStock?

Our hot tips for Irish summer fun, from walks and swimming spots to stargazing and crab fishing, and from foodie tours to 99s ...