第355章 三贼

  “擬詔，四百里加急。”刘辩对著跟过来的尚书台官吏说道。

  朝廷的詔令紧急程度可以大致分为四个部分，一个是二百里加急，日行二百里，也是最常见的加急政令运达方式；

  一个是三百里加急，这个一般不会出现，只有州郡需要抢时间送达詔令的时候才会有这种加急方式，比如说州郡误了时间，必须得在截止日期前將詔令送到，就会派遣专员以三百里加急抢时间；

  一种是四百里加急，非常紧急的詔令，一路上马歇人不歇；

  最后一种就是传说中的八百里加急，一年也不会有超过三次，甚至一两年都见不到一次。

  因为这种信息传递速度对於这个时代来说是超標的，一路上至少跑死四五匹马乃至十几匹马，信使被跑死也是有可能发生的事情。

  不说別的，光是这封信的送信价格就超过二十万，朝廷再是家大业大业支撑不起经常採用这种送信方式。

  除非某地发生大型叛乱或者大军全军覆灭才会採用这种送信方式，让朝廷能儘快得知这个消息，儘快对这种局势做出反应。

  现在这封詔令採用四百里加急也证明了刘辩对这个方法的重视，他必须得儘快將这封詔令送到扬州刺史陈温以及邮传系统在扬州的负责人手里，让他们儘快开始收购，在五月中旬將第一批送到州和豫州。

  现在需要与蝗灾抢时间，大汉经歷了这么多场蝗灾，已经对蝗灾的起势时间有一定的了解，一旦发生蝗灾，那基本就是六月底或者七月初，朝廷只有一个多月的时间消灭蝗虫。

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