Vlak za Zagreb dolazi na drugi kolosijek.

With means of transport like trains, buses, and planes, Croatian often uses za + place to show the destination in the sense of bound for.

So:

• Vlak za Zagreb = the train for Zagreb / the train bound for Zagreb

If you said u Zagreb, that would more directly mean into Zagreb and is more about physical movement to the city itself, not the standard way of labeling a train’s destination in announcements.

A useful pattern:

• autobus za Split = bus for Split
• let za London = flight for London
• vlak za Zagreb = train for Zagreb

Here za takes the accusative because it expresses destination.

For the noun Zagreb, the accusative form is the same as the nominative:

• nominative: Zagreb
• accusative: Zagreb

So even though the form does not change, the case is still accusative in this sentence.

Dolazi is the 3rd person singular present tense of dolaziti, meaning to come, to arrive, or in this context is arriving / arrives.

So:

• vlak ... dolazi = the train ... is arriving

In station language, Croatian present tense is often used where English might use either:

• is arriving
• arrives
• is coming in

So the sentence sounds very natural as a station announcement.

Because na can go with different cases depending on meaning.

Here, na expresses movement toward a destination, so it takes the accusative:

• na drugi kolosijek = onto/to the second track

If you were describing location, not movement, you would use the locative:

• na drugom kolosijeku = on the second track

So compare:

• Vlak dolazi na drugi kolosijek. = The train is arriving onto the second track.
• Vlak je na drugom kolosijeku. = The train is on the second track.

Drugi agrees with kolosijek in gender, number, and case.

Since kolosijek is:

• masculine
• singular
• accusative

the adjective/ordinal must match it:

• drugi kolosijek

For masculine inanimate nouns, the accusative usually looks the same as the nominative, so:

• nominative: drugi kolosijek
• accusative: drugi kolosijek

That is why you do not see a visible change here.

Not exactly.

Kolosijek means track or railway track.

So drugi kolosijek is literally the second track.

In English station announcements, track and platform are sometimes used differently depending on the country. Croatian kolosijek is specifically the railway track. If you mean platform, the word is usually peron.

So:

• kolosijek = track
• peron = platform

In real station usage, the distinction matters.

Yes. Croatian word order is more flexible than English because case endings help show grammatical relationships.

The neutral order here is:

• Vlak za Zagreb dolazi na drugi kolosijek.

But you may also hear:

• Na drugi kolosijek dolazi vlak za Zagreb.
• Dolazi vlak za Zagreb na drugi kolosijek.

These can sound slightly different in focus:

• starting with Na drugi kolosijek emphasizes the destination track
• starting with Vlak za Zagreb emphasizes which train it is

For a learner, the original version is a very good neutral model.

Yes. Vlak is a masculine noun.

You can see that in agreement patterns such as:

• ovaj vlak = this train
• brzi vlak = fast train

In this sentence, the verb form dolazi does not show gender, but adjectives and pronouns used with vlak would follow masculine forms.

A rough pronunciation guide for an English speaker is:

• Vlak ≈ vlahk
• za ≈ zah
• Zagreb ≈ ZAH-greb
• dolazi ≈ doh-LAH-zee
• na ≈ nah
• drugi ≈ DROO-ghee
• kolosijek ≈ koh-loh-SYEK

A few helpful points:

• z is like English z
• ž would be like the s in measure, but there is no ž in this sentence
• j is like English y
• lj, nj, ć, č can be tricky in Croatian, but none of those appear here either

Stress in Croatian is not always shown in writing, so learners usually focus first on clear vowels and consonants.

Croatian has no articles like English a or the.

So:

• vlak can mean a train or the train
• drugi kolosijek can mean a second track or the second track

The exact meaning comes from context. In a station announcement, it is naturally understood as:

• The train for Zagreb is arriving on track two / the second track.

Yes. In practical station English, drugi kolosijek is often best translated as track two.

Literally, it is the second track, but in announcements English often uses a numbering style:

• na drugi kolosijek = on track two

So depending on the context, both are good understandings.

Yes, dolazi is natural and correct. But you may also hear other verbs in station contexts, such as:

• stiže = is arriving
• ulazi = is coming in / entering
• pristiže = is arriving

For example:

• Vlak za Zagreb stiže na drugi kolosijek.
• Vlak za Zagreb ulazi na drugi kolosijek.

All are possible, but dolazi is simple, common, and easy for learners to recognize.

In this sentence, za Zagreb most naturally goes with vlak:

• vlak za Zagreb = the train for Zagreb

So the sentence is built like this:

• [Vlak za Zagreb] [dolazi] [na drugi kolosijek].

That means:

• subject/noun phrase: the train for Zagreb
• verb: is arriving
• destination phrase: onto track two

This is important because za Zagreb is not mainly telling you where the arriving happens; it identifies which train it is.