Vi går ligeud og drejer til venstre ved det næste lyskryds.

Yes. Går is the present tense of gå, which usually means walk.

So in this sentence, Vi går ligeud most naturally suggests that we are on foot. In English, go straight can be used for walking, driving, cycling, and so on, but Danish often chooses a more specific verb:

• gå = walk
• køre = drive / go by vehicle
• cykle = cycle

So if you were driving, Vi kører ligeud og drejer til venstre... would sound more natural.

Both går and drejer are in the present tense.

Danish often uses the present tense to describe a route, a planned sequence, or what happens next in a set of directions. So this sentence is structurally just We go straight ahead and turn left...

If you were giving a direct instruction, Danish would often use the imperative instead:

• Gå ligeud og drej til venstre...

Because the subject vi applies to both verbs.

In Danish, when two verbs are joined by og and have the same subject, you usually do not repeat the subject unless you want extra emphasis.

So:

• Vi går ligeud og drejer til venstre...

is the natural way to say it.

You could say:

• Vi går ligeud, og vi drejer til venstre...

but that sounds heavier and more repetitive.

Ligeud means straight ahead or straight on.

In route directions, you will very often see ligeud written as one word, as in this sentence. It functions as an adverb telling you which direction to continue in.

So:

• gå ligeud = go/walk straight ahead

Because Danish uses the fixed expression til venstre after verbs like dreje.

So:

• dreje til venstre = turn left
• dreje til højre = turn right

Literally, it is like saying turn to the left. In English we usually drop to the, but Danish keeps it.

Just venstre by itself would not sound right here.

Here ved means at or by.

So:

• ved det næste lyskryds = at the next traffic-light intersection / at the next traffic lights

It marks the place where the turning happens.

Be careful: ved can mean different things in other contexts. For example, ved can also be the present tense of vide, meaning know. But here it is clearly the preposition ved.

Because lyskryds is a neuter noun.

The basic form is:

• et lyskryds = a traffic-light intersection

Since it is an et-word, the definite article in this kind of phrase is det:

• det næste lyskryds

A useful rule:

• en noun -> den
• et noun -> det

Because when Danish uses den/det/de + adjective + noun, the noun normally stays in its basic form.

So:

• lyskrydset = the traffic-light intersection
• det næste lyskryds = the next traffic-light intersection

This is a very common pattern:

• huset = the house
• det store hus = the big house

So once you have det and an adjective like næste, you do not add the definite ending -et to the noun.

Lyskryds is a compound noun made from:

• lys = light
• kryds = crossing / intersection

It usually means an intersection controlled by traffic lights. In natural English, it may be translated as:

• the traffic lights
• the next traffic-light intersection

depending on context.

If you mean the traffic lights themselves as objects, Danish often uses trafiklys.

Then Danish would usually use the imperative:

• Gå ligeud og drej til venstre ved det næste lyskryds.

That means Go straight ahead and turn left at the next traffic lights/intersection.

If the person is driving, a more natural version would be:

• Kør ligeud og drej til venstre ved det næste lyskryds.

Very roughly:

• drejer sounds something like DRY-er or DRAI-er
• lyskryds has a Danish y sound that English does not really have; very roughly, you might think of something like lüs-krys

But these are only rough approximations. Danish pronunciation can be quite different from the spelling, so listening to native audio is the best way to learn these words.