As in real life, the traffic lights sometimes turn from green to yellow as you approach them, forcing a quick go-or-stop decision.

跟现实生活一样，你靠近交通信号灯时，它有时会从绿灯变黄灯，让你必须快速决定穿过或停下。

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The solution is a decentralized approach that lets the traffic lights work together by figuring out how changes at each individual intersection would affect the entire system.

解决这一问题就是采取一种分散的方法。 它通过弄清每一个十字路口会对整条路面系统造成何种影响而让多盏信号灯协调工作。

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Shadow mapping is a texture based approach, it's easiest to think of it as "shadow textures" projecting out from lights onto the scene.

阴影贴图是基于纹理的方式，最简单的方法把它看作是“阴影纹理”，从灯光投射阴影到场景。

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As these Calgary buses approach an intersection, the lights go from red to green or stay green just a little bit longer.

FORBES: Magazine Article

If the lights weren't there, naturally we would approach slowly and carefully and see what other people were doing and filter through, but the traffic lights make us speed up to beat them.

BBC: Viewpoint: Is it time to get rid of traffic lights?

This more strategic approach would help officials decide, for instance, whether to upgrade gas mains, sewer lines or street lights in certain areas costly decisions that will need to be carefully weighed.

FORBES: Detroit's Innovative Survival Plan Is A Model For The World - But Will It Work?