求翻译：市交警支队科技处表示，自从安装了新系统，这里的道路通行能力大大提高——变化最大的低峰期（21:30 ～22:30），每小时增加1313辆通行车辆，提高了30.68%。是什么意思？

City traffic police detachment Technology Department, said that since installing the new system, where the road capacity greatly improved - the greatest change in off-peak (21:30 - 22:30), of vehicles per hour increase in 1313, increased 30.68% .

The Traffic Police detachment City Science and Technology Department has said that since the new system installation, road access capability has been greatly enhanced here--the greatest change for low-feng (21:30 ~ 22:30 ) 1313 vehicles per hour increase vehicles has increased 30.68 % .

The city traffic police crew science and technology office indicated, since has installed the new system, here road capacity enhances greatly - - changes the biggest trough time (21:30 ~22: 30), each hour increases 1313 traffic, enhanced 30.68%.

City traffic police detachment Office of science and technology, since the installation of the new system, where the road capacity greatly increases-the greatest changes of low peak (21:30~22:30), 1313 increase traffic vehicles per hour, by 30.68%.

Detachment scientific and technological, traffic police of city, say, since installing the new system, the road traffic capacity here is greatly raised --Change most great low peak issue (21:30 - 22:30), increase pass through vehicle by 1313 per hour, raise by 30.68%.