Then the paper analysed the algorithm of automatic assessment subsystem, focusing on the control of variable speed limits based on the variable-step algorithm and implementations.

然后分析了自动考核系统的自动控制算法，重点阐述了基于限速控制的自动运行算法和实现方案。

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It has already seen variable speed limits introduced and the hard shoulder opened up to vehicles.

BBC: Birmingham motorway congestion 'harming economy'

Moreover, it can also factor such things as weather conditions and variable speed limits into the cars' behaviour.

ECONOMIST: Traffic management

The agency said variable mandatory speed limits would be in place on that section of the M1.

BBC: M1 lane plans on display in South Normanton