Gå rakt fram till stationen, så väntar jag där.

Because gå is an imperative form: a command or instruction.

In Swedish, just like in English, commands usually omit the subject:

• Gå! = Go!
• Kom hit! = Come here!
• Vänta här! = Wait here!

So Gå rakt fram till stationen is simply an instruction: Go straight ahead to the station.

Rakt fram is a very common expression meaning straight ahead.

• rak = straight
• rakt = straight/directly (adverb form)
• fram = forward / ahead

Together, rakt fram means something like straight forward or straight ahead.

You will often hear it in directions:

• Kör rakt fram. = Drive straight ahead.
• Fortsätt rakt fram. = Continue straight ahead.

So even though it is made of two words, learners should think of it as a very common set phrase.

Because stationen means the station.

In Swedish, the definite article is usually attached to the end of the noun:

• en station = a station
• stationen = the station

So:

• till stationen = to the station

In this sentence, the speaker means a specific station that both people understand from context, so the definite form is natural.

Till station by itself would usually sound incomplete or unnatural in standard Swedish.

Here, till means to: it shows the destination.

• Gå till stationen. = Go to the station.

A useful thing to know is that till can also mean until in other contexts:

• till klockan fem = until five o’clock

So till has more than one meaning, and the context tells you which one it has. In this sentence, it clearly means movement toward a place: to the station.

Here så means something like then, and then, or in that case.

It links the two parts of the sentence:

• Gå rakt fram till stationen, så väntar jag där.

The idea is:

• first: you go to the station
• then / in that case: I wait there

So så is not the English so meaning very or so much. It is a linking word that connects one action to the next consequence or result.

A natural English rendering is often:

• Go straight to the station, and I’ll wait there.
• Go straight to the station, then I’ll wait there.

This is because of Swedish V2 word order.

In a normal main clause, the finite verb usually comes in second position. If something other than the subject comes first, the verb still stays second, and the subject moves after it.

Here, så comes first in the clause, so the verb väntar comes next:

• så väntar jag där

Compare:

• Jag väntar där. = I wait / I’ll wait there.
• Där väntar jag. = There I wait.
• Så väntar jag där. = Then I’ll wait there.

So the verb-before-subject order is normal here.

Because Swedish often uses the present tense for future meaning, especially when the future action is planned, expected, or obvious from context.

So:

• jag väntar där can mean I am waiting there, I wait there, or I’ll wait there, depending on context.

In this sentence, the future meaning is clear: after you go to the station, the speaker will be there waiting.

Swedish could also use ska for future:

• så ska jag vänta där

But in many everyday situations, simple present sounds more natural and more idiomatic.

This is an important Swedish distinction:

• där = there, in that place
• dit = to there, to that place

So:

• Jag väntar där. = I’m waiting there.
  
  • location
• Gå dit. = Go there.
  
  • movement toward a place

In your sentence, the speaker is talking about waiting at the station, so a location word is needed: där.

The comma helps separate the two parts of the sentence and makes the pause clear:

• Gå rakt fram till stationen, så väntar jag där.

It is very natural to write it this way. The sentence has:

1. an instruction
2. a following result / next action

The comma makes that structure easy to read.

In informal writing, Swedish sometimes uses commas less strictly than English, but here the comma is clear and helpful.