kono tizu wo mireba, tikadou kara annaizyo made massugu ikemasu.

見れば is the -eba conditional form of 見る and means if you look.

So:

• 見る = to look
• 見ます = look / will look (polite)
• 見れば = if you look

In this sentence, この地図を見れば means if you look at this map.

This pattern often gives the idea that doing the first action will make the second thing possible or clear:

• この薬を飲めば、よくなります = If you take this medicine, you’ll get better.
• この地図を見れば、行けます = If you look at this map, you can go.

を marks the direct object of the verb.

Here, the verb is 見る = to look at, and the thing being looked at is この地図 = this map.

So:

• この地図 = this map
• この地図を見れば = if you look at this map

English uses at in look at, but Japanese just uses the object marker を with 見る.

Japanese very often omits the subject when it is obvious from context.

So this sentence does not explicitly say:

• you look at this map
• you can go straight

But that is usually understood from the situation.

A natural English translation might add you, but Japanese often leaves it unsaid:

• この地図を見れば、...行けます
• literally: If [someone/you] look(s) at this map, ... can go

In real use, it usually means If you look at this map, you can go...

They mark the starting point and ending point.

• 地下道から = from the underpass / from the underground passage
• 案内所まで = to the information desk / as far as the information desk

So:

• から = from
• まで = to / up to / until

Together, 地下道から案内所まで means from the underpass to the information desk.

まっすぐ means straight or straight ahead.

In this sentence, it describes how you can go:

• まっすぐ行けます = you can go straight

It does not mean morally honest here, even though まっすぐ can sometimes describe a person as straightforward or honest. In this sentence it is clearly about direction.

行けます is the potential form of 行く, so it means can go or are able to go.

• 行きます = go / will go
• 行けます = can go

This matters because the sentence is not just saying that someone goes straight. It says that, by looking at the map, it becomes possible to go straight from one place to another.

So:

• まっすぐ行きます = go straight
• まっすぐ行けます = can go straight

They are similar, but not exactly the same.

• 見れば = if you look
• 見ると = when/if you look

In this sentence, 見れば sounds natural because it means if you look at this map, then you’ll be able to go straight. It suggests a condition.

If you used 見ると, it could sound more like when you look at this map, you find that... That is not impossible, but 見れば fits the practical instruction/explanation better.

地下道 means an underground passage, underpass, or pedestrian tunnel.

It is not usually the train system called the subway.

So:

• 地下道 = underground walkway / underpass
• 地下鉄 = subway / metro

That distinction is important:

• 地下道から = from the underground passage
• not from the subway train system unless context strongly says so

案内所 means an information desk, information center, or information booth.

It is made from:

• 案内 = guidance / information
• 所 = place

So it is literally a place for guidance/information.

Depending on context, it could be:

• a station information desk
• a tourist information center
• a help counter inside a building

A natural breakdown is:

• この地図を見れば = if you look at this map
• 地下道から案内所まで = from the underpass to the information desk
• まっすぐ行けます = you can go straight

Japanese often puts:

1. the condition first
2. place/direction information before the verb
3. the verb at the end

So the sentence structure is very normal for Japanese.

The comma helps separate the if-clause from the main clause.

So it divides:

• この地図を見れば、 = if you look at this map,
• 地下道から案内所までまっすぐ行けます。 = you can go straight from the underpass to the information desk.

Japanese commas are often used more flexibly than English commas, but here it makes the sentence easier to read.

In general, まで can mean both:

• to / as far as with places
• until with time

Here it is attached to a place noun, 案内所, so it means to / as far as.

Examples:

• 駅まで行きます = go to the station
• 六時まで勉強します = study until six o’clock

So in this sentence, 案内所まで definitely means to the information desk.

It is doing a bit of both, but grammatically it mainly expresses possibility.

• 行けます = can go
• まっすぐ = straight
• この地図を見れば = if you look at this map

So the sentence is basically saying:

If you look at this map, you’ll be able to go straight from the underpass to the information desk.

In context, that naturally functions like a direction or helpful instruction, even though the wording is technically about what is possible.