Here was my Pacific Surfliner scale rail upgrade I did before I lost it all currently. Pretty much what I did to it was replaced the Crossings at all the intersections to have them look more realistic I used google maps and my own photos for reference on re creating the crossings. I also re did the signal system along with changing the scenery. I also extended the San Diego Trolley line further and I also added quiet zones were they are suppose to go. Enjoy the screenshots. Note I used SMM Digitals railroad crossing's for the upgrade and I used Stevens Pass crossing panels.