But they just pass by, taking the human traffic signal for granted.

但是他们只是驶过，把人体交通标志看作理所当然的事。

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He ignored the traffic signal and caused an accident.

他无视交通信号，从而引起了交通事故。

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Most of the men give no consideration to the colors of the traffic signal.

大多数男人对交通信号灯不够重视。

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A green light on a traffic signal means your car can continue on.

VOA: special.2010.05.23

Transportation officials equipped with increasingly sophisticated technology are considering ways they can use traffic signal-prioritization not just to speed the progress of buses, but to solve bus bunching.

FORBES: Busting Bus Bunching With Traffic Signals

These alerts will enable drivers to plan and share alternative travel routes, improve traveler safety and help transportation authorities better predict and reduce bumper-to-bumper traffic before it occurs through improved traffic signal timing, ramp metering and route planning.

ENGADGET: IBM shows off Smarter Traveler traffic prediction tool

Because tunnels block a radar signal, trains rely largely on hard-wired equipment like the box beside the track, which helps drivers and dispatchers talk to each other and controls a machinelike traffic signal, giving the drivers basic commands to stop and go.

NEWYORKER: Boss Rail