Saint-Lazare Paris to Rouen by train: 1hour 10-30 minutes The timetable of SNCF's service between Saint-Lazare and Rouen: http://www.ter-sncf.com/Images/Rouen_Vernon_Mantes_tcm25-7803.pdf
You can also download the map of Rouen from the city's website: http://www.mairie-rouen.fr/pratique/plan.php
