After reviewing the disappeared northern SIRT branch on forgotten-ny.com, it seems the tracks and right of way are built over by houses and parks and stuff, i think it'd have to be built as a light rail installment along Richmond Terrace. This being said, i think NJT needs to extend light rail to EWR as well, and tie in the whole thing with new light rail tracks, using DMU, since the gauge is the same, you could simply put a switch to head it down the re-activated freight right of way, even if more track had to be put in to keep freight traffic from interfering with light rail service (if this makes any sense?). I've studied the paths that the NLR and SIR extensions would have to make to do all this, and it seems totally possible and practical. Also, there are several old freight lines that run under i-95 between Arthur Kill and EWR, but the lines seem to go through (though with some distance between) the oil storage areas, and may because of security reasons stay freight only, or unused entirely.
- Andy