Om "The El" (elevated trains, højtogene): "Manhatten's lost "EL" streets" fra Forgotten-ny.com: "...Manhattan was dominated by elevated trains beginning in 1868, when what was later called the 9th Avenue Elevated was built on Greenwich Street and 9th Avenue as far north as West 30th, and then extended uptown, eventually connecting with elevated tracks on River Avenue near Yankee Stadium. The 9th Avenue El actually ran in a short tunnel in western Bronx, which I investigated with other 'railbuffs' in 1999. Elevated trains running north on 2nd, 3rd and 6th Avenues followed, with the former two running nearly the length of Manhattan Island north to south. ..." – (dansk) "... Manhattan var domineret af højtog, der begyndte i 1868, da det der senere blev kaldt 9th Avenue Elevated blev bygget på Greenwich Street og 9th Avenue så langt nordpå som West 30th, og derefter udvidet uptown, til sidst forbundet med høje spor på River Avenue nær Yankee Stadium. 9th Avenue El kørte faktisk i en kort tunnel i det vestlige Bronx, som jeg undersøgte sammen med andre 'railbuffs' (togfans) i 1999. Forhøjede tog, der kørte nordpå på 2nd, 3rd og 6th Avenue, fulgte, med de to førstnævnte, der kørte næsten på langs af Manhattan Island fra nord til syd. ..." – Se evt. om 'elevated trains' i Højbane og Chicago "L" om 'elevated train' i Chicago
