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| Re: What is the Steepest Grade in the Subway System? (1548400) | |||
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Re: What is the Steepest Grade in the Subway System? |
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Posted by Stephen Bauman on Sat May 23 16:35:48 2020, in response to Re: What is the Steepest Grade in the Subway System?, posted by Steamdriven on Sat May 23 12:45:25 2020. The Commonwealth Avenue hill just east of Cleveland Circle on the B line is quite steep, it's a slog to even walk on. Its outdoors, so the LRVs are required to climb it in all weather. Sorry I don't know the grade %, but it's easily over 6%.There used to be a product called DeLorme's Topo USA. It allows you to create a profile for any path in the USA. The grade along the path is also displayed. It uses USGS data for the US. Google and its derivative products use satellite radar data to determine height. There are a lot of inaccuracies with the satellite data. I bought the product to settle arguments among cyclists as to which hill was the toughest climb. That didn't quite work out. I also lived at Commonwealth Ave and Warren St during my first year in graduate school. It's at the base of the hill, where the car moves from the side to the center of Commonwealth (besides Packards Corner). I'm very familiar with that area. The profile along Commonwealth from Warren to Lake St (the end of the BC car line) shows the peak is about a block and one half west of Washington St. The initial climb from Warren to Summit Ave registers between 6% and and 10%. There's a lesser climb between Washington and Mt. Hood Rd that maxes out at 9% for a very short stretch. |
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