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william.furr

“Whatever you are, be a good one.”
— Abraham Lincoln

I am good at giving a damn.

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  • william.furr replied to a comment by Zoë Prillinger

    Designing Streets for People, Not Just Cars via magazine.good.is

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    Zoë Prillinger7 months ago

    Good question (there are several comments regarding how curb extensions affect bike lanes). It would be irrational to create bike lanes only to abruptly truncate them at intersections, forcing bikers into car traffic.

    By design, bulb-outs don't encroach on the bike lane at all (and thus, don't 'narrow' the portion of road used for movement), but instead only occupy the width of the parking lane at the corner. Because parked cars don't typically wrap around the corner, cyclists naturally 'cut' these corners diagonally--but then they're still forced to merge adjacent to fast-moving cars that haven't confronted any slowing measures across the intersection.

    With this in mind, we designed our bulb outs to accomplish what a curb-height, rounded bulb-out might not--slowing traffic not just on the turn, but across the entire intersection zone. Their bulk and height, in addition to ample surface hatching, reduce vehicular speed from all street directions, and the chamfered geometry still allows cyclists to 'cut corners' without being forced into traffic in the intersection.

    In locations where bike lanes have been created by eliminating parking lanes, I agree that curb extensions are problematic. Our in-depth proposal (not fully described in this article) allows for site-specific variations, which in a case like this might have curb extensions only on one side of the street (eg. the new bike lanes on Oak and Fell Streets).

    william.furr7 months ago

    Thank you for the well thought-out reply. I can see how that would work well for a bike lane that's between the traffic lane and parking lane.

    Those sorts of bike lanes are a sub-par design, though, compared to a protected or buffered bike lane, often seen with floating parking, such as this design on 1st and 2nd Ave in NYC: http://www.nyc.gov/html/brt/images/photos/protected_bike_lane_photo.jpg

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  • william.furr commented on a link

    Designing Streets for People, Not Just Cars via magazine.good.is

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    william.furr7 months ago

    Where does the bike lane go? I love curb extensions when I'm walking, but I hate them when I'm cycling – they force me into the traffic lane with cars. What about routing a bike lane behind the curb extension so that there's a small island between the bike lane and the traffic lane?

    The example intersections you chose here all have street parking on both sides of all streets. That's a ton of asphalt given over to private vehicle storage, and a configuration that's hopefully becoming less common as road space is re-apportioned fairly to other uses, such as bike lanes.

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