Many steps have been taken to relieve the pressure on traffic, pitifully some of which are ineffective.

已经采取了很多步骤去见减轻交通方面的压力，很遗憾，这些之中有些无效。

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As a result, anomaly detectors tested against simulated data and found effective may prove ineffective when deployed in real networks monitoring real traffic, he says.

DeVale说，因此，根据模拟数据测试并且发现有效的异常探测器在部署到真实网络中去监视真实流量的时候也许是没有效的。

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Fuel duties, he points out, are an ineffective way to restrain traffic.

ECONOMIST: Fuel tax: Foot off the escalator | The