As 交通工具的旅行增加 t他的城市交通拥挤问题的传播,这种有迫切需要引进先进的技术和设备的改进的--先进的交通控制。由于越来越多的车辆和当前基础设施提供的有限的资源越来越多现在一天的交通问题。所以一个模拟和优化流量控制算法来增加需求是需要时间。控制交通灯的最简单方法是使用一个计时器每个阶段。在本文中我们建议的实验室视图仿真模型用于控制基于时间间隔的交通灯。可以扩展此仿真模型来控制基于交通密度的交通灯的时间间隔。这可以甚至扩展到基于的交通密度大城市城市综合的交通管理系统
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001043s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.067862s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001075s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001155s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001061s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003200s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001083s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003997s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017996s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001324s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 262037 [ RunTime:0.039355s ]