Taking ATB Surface Mine, Pingshuo Coal Company as an example, the feature of pit haulage system was analyzed in the transition period for mining-in-areas at flat-bedded or gently-inclined deposit.

• 以平朔煤炭工业公司安太堡露天矿为例；分析了开采近水平及缓倾斜矿床露天矿分区开采过渡期间开拓运输系统的特点、可能出现的问题和解决途径；提出了寻求该时期开拓运输系统优化的思路和方法.