The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

Category: Recumbent Bicycling

Cruisin’ the streets

  • Protecting The Sony HDR-AS30V Lens: First Drop

    After a year and a half, I finally found out whether flipping the AS-30V camera upside-down would protect its lens:

    Sony HDR-AS30V - flip mode vs ground contact
    Sony HDR-AS30V – flip mode vs ground contact

    Yes. Yes, it does, at least from a grass-like ground cover.

    I’d leaned the bike against a Blue Loo, turned my back, took four steps, and wham down it went.

    The upper front rim of the skeleton case ended up firmly pressed against the ground, with the lens safe. A slight smear from the greenery wiped off easily, with dirt embedded between the fake fur and the case, exactly where the lens would stick out in its normal orientation.

    Whew!

    I love it when a plan works out …

  • Traffic Signal Timing: Burnett Blvd at Rt 55 Detour

    Word from the BPAC meeting says that NYSDOT re-timed the signals on both ends of Burnett Blvd, because of the increased traffic from the closed bridges on Degarmo Rd. Here’s what that looks like from a bicyclist’s perspective; you may want to compare this with other measurements in the recent past.

    T=0.00 – I’m approaching the light and obviously won’t get through on the current cycle. However, the car in the left lane is just clearing the sensor loop, so we know the sensor has been triggered:

    Burnett Blvd at Rt 55 2016-04-27 - detour timing - 0073
    Burnett Blvd at Rt 55 2016-04-27 – detour timing – 0073

    T=4.133 – Signals turn yellow:

    Burnett Blvd at Rt 55 2016-04-27 - detour timing - 0321
    Burnett Blvd at Rt 55 2016-04-27 – detour timing – 0321

    T=8.433 – The left signal turns red (the right signal will go on 4/60 s later), with the white car accelerating hard across the stop line:

    Burnett Blvd at Rt 55 2016-04-27 - detour timing - 0579
    Burnett Blvd at Rt 55 2016-04-27 – detour timing – 0579

    As nearly as I can tell, the green-to-yellow change has decreased from about 7 s to maybe 4 s; that may be influenced by the car position / speed across the loop. NYSDOT definitely hasn’t increased the minimum delay to provide additional time for bicyclists.

    The yellow-to-red transition may have decreased from 5 s to 4 s; it definitely hasn’t increased.

    T=10.433 – The white car deliberately blew through the yellow and red signals:

    Burnett Blvd at Rt 55 2016-04-27 - detour timing - 0699
    Burnett Blvd at Rt 55 2016-04-27 – detour timing – 0699

    T=12.000 – The white car has almost cleared the intersection, 3.567 s after blowing through the red light, and cross traffic in Rt 55 has started to move:

    Burnett Blvd at Rt 55 2016-04-27 - detour timing - 0793
    Burnett Blvd at Rt 55 2016-04-27 – detour timing – 0793

    It’s impossible to tell from my position when the Rt 55 traffic saw their green signals, but they started moving 3.5 s from the time the signal in our direction turned red. I’d previously measured that at 1.333 s, so NYSDOT seems to have lengthen the all-red overlap.

    T=14.433 – Cross traffic on Rt 55 fills the intersection:

    Burnett Blvd at Rt 55 2016-04-27 - detour timing - 0939
    Burnett Blvd at Rt 55 2016-04-27 – detour timing – 0939

    That’s 10.3 s from the Burnett signal turning yellow, which usually happens when we’re just barely into the intersection; we need at least 15 s to reach the far side of all six lanes. Obviously, cross traffic on Rt 55 must notice that we haven’t cleared the intersection when their signals turn green and avoid running over us; that’s legally required, but it’s obvious NYSDOT (still) isn’t helping bicyclists get across the intersection.

    The NYSDOT regional office behind my right shoulder has a bike rack. We’ve never seen any bikes in it, so it’s equally obvious NYSDOT doesn’t practice dogfooding. I’ve never been able to invite / persuade / shame anyone from NYSDOT to ride along with us, so they can show me why their design really does “mak[e] our highway systems safe and functional for all users“.

  • Road Conditions: 2816 Rt 376 Northbound Sinkhole Patched

    By my count, four NYSDOT repair crews, one sent specifically to repair this sinkhole, managed to not patch it during the last nine months:

    Rt 376 2016-04-20 - Northbound milepost 1110 - sinkhole
    Rt 376 2016-04-20 – Northbound milepost 1110 – sinkhole

    Good news comes to those who wait:

    Rt 376 2016-04-21 - Northbound milepost 1110 - sinkhole
    Rt 376 2016-04-21 – Northbound milepost 1110 – sinkhole

    It didn’t involve waiting: by random chance, a fifth NYSDOT road repair crew happened to be in that area when Mary rode by. She stopped directly atop the sinkhole and screamed at the flagger until he came over. She explained the problem and, wonder of wonders, this time they put asphalt in the right spot.

    The patch looks hand-tamped and will pop out after a while, but it’ll be great while it lasts.

     

  • Moth Flyby

    A moth came within arm’s reach during a ride along the Dutchess County Rail Trail:

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    Squinting at some earlier frames that show only a tiny moving dot, the moth disappears every five frames: one wingbeat requires either 5/60 or 10/60 s = 12 or 6 strokes/second.

    We continued our respective missions without incident…

    The moth came much closer to the camera than it looks. I should calibrate the images with known objects at known distances, but that seems like a lot of work.

  • Candidate Caravan

    For obscure reasons, the Silly Season brought Sanders, Trump, and Clinton fille to the City of Poughkeepsie within the span of eight days. We know enough to stay far away from such events, but one of the contestants came to us!

    A siren heralded flashing lights off to the left, coming up the hill from the bridge over the Mighty Wappingers Creek:

    Candidate Motorcade - 0463
    Candidate Motorcade – 0463

    The police car jammed to a stop in the middle of the Red Oaks Mill intersection, directly in front of the cars (and bikes) that had just begun moving after the light turned green:

    Candidate Motorcade - 0700
    Candidate Motorcade – 0700

    During the next minute, the officer managed to clear most of the traffic from the left-turn storage lanes perpendicular to us, after which two motorcycle officers led the procession:

    Candidate Motorcade - 5015
    Candidate Motorcade – 5015

    Two ordinary SUVs with flashing light bars followed:

    Candidate Motorcade - 5211
    Candidate Motorcade – 5211

    Two stretched SUVs with side window and marker flashers:

    Candidate Motorcade - 5403
    Candidate Motorcade – 5403

    One blatantly inconspicuous black sedan running dark:

    Candidate Motorcade - 5467
    Candidate Motorcade – 5467

    Two black patrol cars and a white patrol car, all with flashing lights:

    Candidate Motorcade - 5792
    Candidate Motorcade – 5792

    The officer jumped into his car and rejoined the procession at the end:

    Candidate Motorcade - 5992
    Candidate Motorcade – 5992

    According to my back-of-the-envelope, the motorcade moved through the intersection at a steady 20 mph.

    Given where all the folks who merit such an escort were supposed to be at the time, I don’t know why they brought The Personage through the Red Oaks Mill intersection in that direction; the City of Poughkeepsie is to our rear, due north of Red Oaks Mill. Perhaps they’re following a randomly chosen route to confuse the unprepared, even though it’s longer and requires more traffic control?

    Rumors from a Reliable Source indicate that not all trains travel on steel rails.

    I suppose you eventually get used to having a couple of quiet people standing in every room with you.

    One benefit of the inevitable news coverage: a few more people now know how to pronounce “Poughkeepsie”.

  • Road Conditions: Grand Avenue at Westbound Arterial

    Just because I hadn’t done so for quite a while, I rode Grand Avenue from Beechwood north to the rail trail. The rotted asphalt at the Westbound Arterial (a.k.a. Maple St, at that point) intersection makes it easy to spot the quadrupole sensor loop:

    Grand at Arterial WB - front camera - 0193
    Grand at Arterial WB – front camera – 0193

    After half a minute, with no traffic pulling up behind me, I eased the bike over the central wire:

    Grand at Arterial WB - front camera - 1693
    Grand at Arterial WB – front camera – 1693

    Which is exactly as awkward as it seems:

    Grand at Arterial WB - front camera - 1945
    Grand at Arterial WB – front camera – 1945

    Much to my surprise, the sensor tripped:

    Grand at Arterial WB - front camera - 3044
    Grand at Arterial WB – front camera – 3044

    That’s about 50 s from the time I rolled over the first of the two sensor loops, which is fast enough for me. It’s unusual to find a sensor loop that detects a bike, though.

    A bit over 6 s seconds later, I’ve cleared the intersection:

    Grand at Arterial WB - front camera - 3445
    Grand at Arterial WB – front camera – 3445

    The rear camera shows that the light remains green:

    Grand at Arterial WB - rear camera - 1085
    Grand at Arterial WB – rear camera – 1085

    And it stays green:

    Grand at Arterial WB - rear camera - 1121
    Grand at Arterial WB – rear camera – 1121

    About 11 s after turning green, a car approaches the sensor loop:

    Grand at Arterial WB - rear camera - 1228
    Grand at Arterial WB – rear camera – 1228

    I think that reset the signal timing, so that light remained green for nearly 23 s:

    Grand at Arterial WB - rear camera - 1581
    Grand at Arterial WB – rear camera – 1581

    It turned red after 26 s:

    Grand at Arterial WB - rear camera - 1671
    Grand at Arterial WB – rear camera – 1671

    As nearly as I can tell, the minimum green time for this intersection is 12 s.

    So life is good: the sensor loop detects a bicycle and the signal remains green for long enough to a bike to clear the intersection. If only all intersections worked that way!

    Compare that with the minimum 7 s for the Burnett Blvd intersection and you (well, I) wonder why crossing six lanes requires 5 s less than crossing three lanes. Perhaps different standards apply to this single-direction cross-traffic flow that make it much more difficult than Burnett’s bidirectional cross traffic?

     

  • Phil Wood Rear Hub Internal Bearing

    As part of replacing the entire drivetrain on my Tour Easy, I finally got around to replacing the bearings in the Phil Wood rear hub. The rear axle supports four bearings, with the innermost one captured between the end of the freehub and the aluminum retainer:

    Phil Wood hub - internal bearing
    Phil Wood hub – internal bearing

    The three small screws secure the retaining ring (sitting off to the right) against the bearing. If you don’t know what’s inside, you’d think they hold the freehub in place. Removing them doesn’t do anything useful unless you’re replacing the bearings and, if the retainer rotates even slightly inside the hub, you’re faced with taking the whole damn thing apart.

    That bearing is lightly loaded, well-protected on all sides, and felt just fine, so I slathered more grease around it and left it in place. The other three bearings hit the trash can with a resounding clang…