The Metra Southwest Service extension provided a benefit to far flung commuters, but boarded an average of 19 passengers a day at Manhattan and 19 a day at Laraway, pre-pandemic in 2018. The Rock Island line that's been there forever carries far more passengers into the loop from Mokena, New Lenox and Tinley, if downtown is where you are going, and that's the one I usually catch if I'm going that way. I agree development has been slow to the south I-355 corridor, but 2 of my grandkids were born at the new hospital at the south end, and they're still growing! My comment was more directed at the south Cook suburbs east of Frankfort where I grew up, and where other than the Loop, jobs were harder to access in say Oak Brook or Elk Grove or Bolingbrook before I-355 went in. It was either a lot of backtracking on I-80 west to I-55 north, making your way to the more crowded I-294, or grinding it out on arterials like US 45.
From about age three through the end of third grade, I grew up at a dead end next to that railroad (
here). Back then, there were only about two trains per day on that line, and at least one of them was at night. On the other side of the tracks was a forest and a man who bought farm animals to sell at auction. I grew up playing on the railroad, exploring the forest, feeding the deer and trying to catch the guinea fowl, climbing down onto the ledge underneath the Old Plank Road Trail bridge, etc.
Because it was such a little-used railroad at the time, my friends and I played right on the tracks all the time.
One day, two friends and I decided to take a hike north up the line. Eventually, we came to
the trestle that goes over the Rock Island line. It's one of those with naught but gaps between the ties.
Cool! We decided to cross the trestle, a bit scared by vertigo, but careful to not fall through to the tracks below. When we were halfway across, an approaching Metra train blew its whistle and scared the living daylights out of me. I thought there was a train immediately behind us! I literally jumped back from fright. Fortunately, I landed on a tie—one or two behind the one I had alighted from. That was one of the scariest childhood experiences I remember.
It's kind of hard for me to imagine Metra service operating on that line now because, when I was living there, there was still a gravel section of Laraway Road.