Although, several people told us that the train to Utrecht would be much faster, we chose to take the bus. My husband and I enjoyed the beautiful drive. We saw many splendid homes, a working windmill and many beautiful farms along the way. We took the 120 in Abcoude and it took us to the town center and the central station in Utrecht. We walked along the canals in Utrecht and enjoyed a nice meal while watching the canal boats, kayakers and canoes go by. Roundtrip ticket was less than seven euros.
Since 1843 a train connects Utrecht with Amsterdam. This train passes Abcoude. Two times per hour you can take the train here to both Amsterdam or Utrecht. See the website of the dutch railways (NS) for detailed travel information.