Breakdown of Перед поездкой я собираю вещи вечером, чтобы утром не спешить.
Questions & Answers about Перед поездкой я собираю вещи вечером, чтобы утром не спешить.
Because the preposition перед normally requires the instrumental case when it means before / in front of.
- поездка = trip
- nominative: поездка
- instrumental: поездкой
So:
- перед поездкой = before the trip
This is a very common pattern:
- перед уроком = before the lesson
- перед встречей = before the meeting
- перед отъездом = before departure
So the form поездкой is there because of the grammar required by перед.
Yes, often you can, but the feel is a little different.
- перед поездкой = before the trip, often closer to the event itself
- до поездки = before the trip, more neutral and broad
In this sentence, перед поездкой sounds very natural because it suggests preparation shortly before leaving. It fits well with packing your things the evening before.
So both are possible in many contexts, but перед поездкой is especially natural here.