Complex sentence: An employee of Bake, W.C. Brade, continued his plans, although he changed the route to run from Amsterdam to Rotterdam, with the original stretch running to Haarlem to test its economic viability.
Split into simpler sentences: An employee of Bake, W.C. Brade, continued his plans, although he changed the route to run from Amsterdam to Rotterdam. With the original stretch running to Haarlem to test its economic viability.