In Russian, giving commands using verbs of motion involves choosing between unidirectional (one-way) and multidirectional (general/round-trip) verbs. The choice depends on whether you are commanding a specific movement happening now or a general habit.
Most positive commands (telling someone to "Go!") use the unidirectional form. This is because a command usually refers to a single action moving in one specific direction right now.
Example: Иди сюда! (Idi syuda! — "Come here!")
When commanding someone to go by transport (vehicle), we use the perfective verb поехать (to set off). Its imperative form is unique: поезжай! (Poezzhay!). Note that the form "едь" is considered non-standard/incorrect in formal Russian.
When telling someone not to do something (prohibitions), Russian often uses the multidirectional verb. This usually implies a general prohibition or advice against a certain mode of travel or habit.
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