An jeder Haltestelle sieht man neue Informationen.

No. man in German is an impersonal pronoun. It usually means something like:

• one
• you in a general sense
• people

So man sieht means one sees, you see, or people see.

It does not mean a male person here.

Also note that man takes third-person singular verb forms:

• man sieht
• man sagt
• man geht

Because German main clauses follow the verb-second rule.

In this sentence, An jeder Haltestelle comes first, so the conjugated verb must come next:

• An jeder Haltestelle
  • sieht
    • man
      • neue Informationen

The more neutral basic order would be:

• Man sieht neue Informationen an jeder Haltestelle.

Both are correct, but when you put An jeder Haltestelle first, you emphasize the location.

Because an is a very common preposition for being at certain places, including stops, stations, walls, borders, and similar points.

So:

• an der Haltestelle = at the bus/tram stop

Using in would suggest being inside something, and auf would suggest being on top of something or on a surface/platform in certain contexts.

Here an is the natural choice for at every stop.

Because Haltestelle is:

• feminine: die Haltestelle
• singular
• after the preposition an
• and here an is used for a location, so it takes the dative

The dative feminine form of jeder is jeder.

So:

• nominative: jede Haltestelle
• dative: an jeder Haltestelle

That is why the sentence has an jeder Haltestelle.

Because jeder means every or each, and in German it is used with a singular noun.

So:

• jeder Tag = every day
• jede Woche = every week
• jede Haltestelle = every stop

This is similar to English, where you also say every stop, not every stops.

Good question. In English, information is usually uncountable, but in German Information can be used as a countable noun more easily.

So:

• Information = information / a piece of information
• Informationen = pieces of information / items of information

In this sentence, neue Informationen suggests multiple new pieces of information, not just one.

Because Informationen is the direct object of sehen, so it is in the accusative.

Also, there is no article before it. With no article, the adjective takes a strong ending.

For accusative plural, that ending is -e:

• neue Informationen

Compare:

• Ich sehe neue Informationen.
• Ich sehe die neuen Informationen.

With die, the adjective becomes neuen. Without an article, it is neue.

Yes, absolutely.

Both of these are correct:

• An jeder Haltestelle sieht man neue Informationen.
• Man sieht neue Informationen an jeder Haltestelle.

The difference is mainly focus:

• An jeder Haltestelle ... emphasizes where
• Man sieht ... starts more neutrally with the subject

So the original sentence is just a more location-focused version.