i gillo jikjinhamyeon eunhaengi naogo, da-eum sinho-eseo uhoejeonhamyeon dwae.

이 길로 means along this road / by this road / on this road.

The particle -로 often shows:

• direction
• route
• means/method

So 길로 가다 suggests go by way of this road or follow this road.

If you used 길에서, it would sound more like at/on the road as a location where something happens, not the route you take. In directions, -로 is much more natural here.

직진 means going straight.

직진하다 = to go straight
직진하면 = if you go straight / when you go straight

This uses the conditional ending -면, which often means if or when depending on context.

So:

• 직진하다 → to go straight
• 직진하면 → if you go straight

Both instances of -하면 give step-by-step directions.

• 직진하면 = if/when you go straight
• 우회전하면 = if/when you turn right

In English, directions often avoid repeating if, but Korean commonly uses this structure naturally:

• Go straight, and then if you turn right at the next light...

Here it gives a sequence of actions:

1. go straight
2. the bank appears
3. turn right at the next signal

So it sounds very natural in spoken Korean.

Right — this is a very common Korean expression in directions.

나오다 literally means to come out / to appear, but in route descriptions it often means:

• you will come across
• you will see
• you will reach

So 은행이 나오고 means something like:

• you’ll come to a bank
• a bank will appear
• you’ll see a bank

This is one of those places where Korean uses a verb differently from English.

Because 은행 is being treated as the thing that appears.

In Korean, with 나오다 in this kind of sentence, the thing that comes into view is often marked with 이/가:

• 은행이 나오다 = a bank appears / you come across a bank

If you used 은행을, it would not fit naturally with 나오다 here.

So 은행이 is correct because the bank is the subject of appearing.

-고 connects one clause to the next, often meaning and, and then, or simply linking actions/events.

Here:

• 은행이 나오고
• 다음 신호에서 우회전하면 돼

This gives a sequence:

• you’ll come to a bank, and then
• at the next signal, you can/should turn right

In directions, -고 is very common for chaining steps together.

다음 = next
신호 = signal / traffic light
-에서 = location where an action happens

So 다음 신호에서 means:

• at the next traffic light
• literally, at the next signal

Even though 신호 by itself literally means signal, in road directions it often refers to a traffic light.

They have different roles.

• 이 길로: marks the route/direction you follow
• 다음 신호에서: marks the place where the turning action happens

So:

• -로 = along/by way of this road
• -에서 = at the next signal

This contrast is very common in Korean directions.

Grammatically, yes, it comes from 되다, but the natural meaning is:

• you can just turn right
• you should turn right
• turn right and that will do

Breakdown:

• 우회전하다 = to turn right
• 우회전하면 = if/when you turn right
• 돼 = it works / it’s okay / that’s enough

So 우회전하면 돼 is a very common spoken way to say:

• You just need to turn right
• Then turn right

돼 makes the sentence sound casual and practical.

It suggests:

• that will do
• that’s all you need to do
• you’ll be fine if you do that

So compared with a more neutral instruction, 우회전하면 돼 feels like:

• Just turn right there
• You only need to turn right there

It is friendly, conversational Korean.

It is in a casual-polite mixed spoken style, but overall it leans casual because of 돼.

A more polite version might be:

• 이 길로 직진하시면 은행이 나오고, 다음 신호에서 우회전하시면 됩니다.

The original sentence is natural when speaking to:

• a friend
• someone younger
• someone in an informal situation

In everyday spoken Korean, this kind of level is very common.

Korean often omits subjects when they are obvious from context.

In directions, it is understood that the listener is the one moving:

• (당신이) 이 길로 직진하면...
• (당신이) 우회전하면 돼

But saying 당신 here would sound unnatural. Korean usually leaves it out unless there is a special reason to emphasize it.

Technically, 은행 can mean bank as in a financial institution, and there is also another word with the same spelling and pronunciation that means ginkgo. But in this sentence, because it is giving street directions, 은행 clearly means a bank.

So context tells you the meaning.

It is basically:

• 이 길로 직진하면 = if/when you go straight on this road
• 은행이 나오고 = you’ll come to a bank
• 다음 신호에서 우회전하면 돼 = then you just turn right at the next traffic light

So the sentence gives directions in sequence:

1. go straight on this road
2. you’ll see a bank
3. turn right at the next light

This kind of chained structure is extremely common in spoken Korean directions.