Search: Posts Made By: jputnam
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04-21-16, 11:38 AM
Replies: 601
Views: 71,565
Posted By jputnam

As FHWA's research has shown, even...

As FHWA's research has shown, even properly-installed trail bollards are more of a hazard to cyclists than the traffic they prevent. CROW reports the same is true in the Netherlands, where the...
03-26-15, 11:55 AM
Replies: 29
Views: 2,471
Posted By jputnam

Especially if you expected the signal to work, so...

Especially if you expected the signal to work, so you're sitting in the left turn lane, traffic going by to either side of you, and the nearest crosswalk button is 30 feet away.
03-26-15, 11:52 AM
Replies: 29
Views: 2,471
Posted By jputnam

Because walking slowly, against the light,...

Because walking slowly, against the light, through busy lanes of traffic increases the risk of getting hit.

If you're ever forced to cross multiple lanes of 40 mph traffic, you'd better do it...
03-25-15, 09:53 PM
Replies: 29
Views: 2,471
Posted By jputnam

So my 13 year old should be stuck in a...

So my 13 year old should be stuck in a left-turn-only lane and have to run across conflicting lanes of traffic to get to a button?

How is running through traffic safer than bicycling through the...
03-08-15, 01:33 AM
Replies: 73
Views: 3,371
Posted By jputnam

One of the most bogus transportation statistics...

One of the most bogus transportation statistics out there -- it assumes all bicycling is recreational, and no driving is recreational.

In the real world, we know millions of people routinely...
03-05-15, 10:46 PM
Replies: 73
Views: 3,371
Posted By jputnam

True, but there are minimum standards for sight...

True, but there are minimum standards for sight distances in travel lanes, unlike bike lanes and sidewalks. The farther you are from the travel lane, the less likely a driver will be looking for...
03-04-15, 11:58 PM
Replies: 29
Views: 2,471
Posted By jputnam

Just a quick update, the bill to allow cyclists...

Just a quick update, the bill to allow cyclists to proceed through a defective red light when safe to do so has passed in the state Senate, it's now up to the House.
03-04-15, 11:50 PM
Replies: 73
Views: 3,371
Posted By jputnam

If it's shared with pedestrians, it's not a bike...

If it's shared with pedestrians, it's not a bike path, but it might be a multi-use path.

If it has driveway intersections that lack proper sight distances and turning radii, then it's not a path,...
02-24-15, 09:31 PM
Replies: 601
Views: 71,565
Posted By jputnam

On my way to work this morning, reported some...

On my way to work this morning, reported some bollards that had been painted dark brown, probably part of a graffiti coverup, leaving them a real threat in poor lighting conditions.
...
02-21-15, 11:39 PM
Replies: 40
Views: 4,326
Posted By jputnam

Test bicycles have been built with added...

Test bicycles have been built with added counter-rotating wheels to eliminate gyroscopic forces. They're still stable.

Researchers explain why bicycles balance themselves | Cornell Chronicle...
02-20-15, 10:11 PM
Replies: 148
Views: 6,742
Posted By jputnam

Having sold commercial insurance in the past,...

Having sold commercial insurance in the past, I've never encountered a policy that excluded premises liability for bicyclists in drive-thrus. Doesn't mean they don't exist, but I won't believe they...
02-20-15, 11:23 AM
Replies: 11
Views: 972
Posted By jputnam

To your question of apples or oranges, let me say...

To your question of apples or oranges, let me say watermelons.

I've always liked the aesthetics of 4-cross, with spokes perfectly tangent to the hub flange. If "cool" means what everyone else...
02-20-15, 11:13 AM
Replies: 33
Views: 2,136
Posted By jputnam

Just as important, in my opinion, is the related...

Just as important, in my opinion, is the related move to remind people that drivers, not cars, cause collisions.

"The car struck a pedestrian" makes it sound like the car was doing it on its...
02-15-15, 04:38 PM
Replies: 46
Views: 3,844
Posted By jputnam

Standard homeowners personal liability protection...

Standard homeowners personal liability protection in the U.S. is not limited to the insured premises, it covers the named insured(s) world-wide. Coverage for negligence while bicycling is not an...
02-08-15, 11:10 PM
Replies: 13
Views: 838
Posted By jputnam

Not knowing the gloves, what fabric are they made...

Not knowing the gloves, what fabric are they made from? Anything with lycra limits the range of cleaning methods quite a bit.

My summer gloves, I just throw in the washing machine.

That's hard...
02-07-15, 09:43 PM
Replies: 29
Views: 2,471
Posted By jputnam

https://farm9.staticflickr.com/8387/8510880384_61f...

https://farm9.staticflickr.com/8387/8510880384_61fc8855a8_z.jpg (https://flic.kr/p/dY5udY)
Bicycle Detector Pavement Marking for traffic signals, MUTCD Fig. 9C-7 (https://flic.kr/p/dY5udY) by...
02-07-15, 09:39 PM
Replies: 29
Views: 2,471
Posted By jputnam

Washington State cyclists - where do you hit red lights that won't change for bikes?

Questions aimed at people in Washington State:


Where do you hit red lights that won't change for bicycles?

How frequently do you run into lights that won't change for bikes?

When you...
01-31-15, 05:14 PM
Replies: 50
Views: 4,667
Posted By jputnam

These are fine by themselves for the winter, at...

These are fine by themselves for the winter, at least in the Seattle area where "winter" is rarely below the upper 20s.
01-31-15, 05:12 PM
Replies: 50
Views: 4,667
Posted By jputnam

Dark helmets are a great place for reflective...

Dark helmets are a great place for reflective tape.

https://farm7.staticflickr.com/6116/6313505367_051efa3823.jpg (https://flic.kr/p/aBUnbP)
Conspicuity 3 (https://flic.kr/p/aBUnbP) by...
01-31-15, 02:08 PM
Replies: 19
Views: 843
Posted By jputnam

My Jandd seat bag lasted about 30 years of hard...

My Jandd seat bag lasted about 30 years of hard use. When it finally wore out they had discontinued the model so I replaced it with something else, but can't complain about the durability.

My...
01-31-15, 01:50 PM
Replies: 50
Views: 4,667
Posted By jputnam

One other thought, your bike and your legs are...

One other thought, your bike and your legs are probably a better place to focus for reflective conspicuity at close range, in city conditions. Your upper body is often above the cutoff of the...
01-31-15, 01:46 PM
Replies: 50
Views: 4,667
Posted By jputnam

Find a shirt you like and add the reflective trim...

Find a shirt you like and add the reflective trim yourself. It's simple and easy to do.

One off-the-shelf solution is Lightweights Power Reflectors...
01-13-15, 03:50 PM
Replies: 29
Views: 3,667
Posted By jputnam

Any time I make a significant change in gear, I...

Any time I make a significant change in gear, I set my little pocket camera up on interval mode on a safe stretch of trail and ride back and forth a good distance away, with and without flash, to...
01-13-15, 03:46 PM
Replies: 29
Views: 3,667
Posted By jputnam

Those gloves are a heavy polyester fabric, but...

Those gloves are a heavy polyester fabric, but I've also used the same reflectors on lightweight poly jersey mesh, polyurethane-coated rain gear, leather shoes, and poly/lycra winter tights, all with...
01-03-15, 03:47 PM
Replies: 29
Views: 3,667
Posted By jputnam

If you want something larger than the...

If you want something larger than the Lightweights Power Reflectors pieces that I used on my gloves, they also sell it by the roll,
Lightweights Flex Tape...
01-03-15, 03:37 PM
Replies: 29
Views: 3,667
Posted By jputnam

Good point. Yellow is almost as intense as...

Good point. Yellow is almost as intense as white/silver, red is greatly reduced. For example, 3M gives the following coefficients for its diamond-grade reflective tape:

White 580
Yellow 435 ...
01-03-15, 03:26 PM
Replies: 29
Views: 3,667
Posted By jputnam

For reflective additions to gloves, Lightweights...

For reflective additions to gloves, Lightweights Power Reflectors...
01-03-15, 03:23 PM
Replies: 29
Views: 3,667
Posted By jputnam

When they're visible, pedal reflectors are...

When they're visible, pedal reflectors are ideally positioned to capture headlight beams (low beam headlights are required to have a top cutoff on the beam pattern that means rear reflectors located...
Forum: Commuting
01-03-15, 03:08 PM
Replies: 507
Views: 23,657
Posted By jputnam

The pedestrian you're approaching isn't in a...

The pedestrian you're approaching isn't in a conversation with you, and is probably thinking about something else.

If you say "On your left" at a normal speaking cadence, it takes time for them to...
Forum: Commuting
01-03-15, 03:01 PM
Replies: 22
Views: 5,763
Posted By jputnam

I use mustache bars with a Nexus thumb shifter...

I use mustache bars with a Nexus thumb shifter instead of the twist shifter. Over 30,000 trouble-free miles so far.

https://farm8.staticflickr.com/7086/7370808234_3b5654e87e.jpg...
01-03-15, 02:42 PM
Replies: 64
Views: 3,655
Posted By jputnam

It's easy to miss the 4th Ave bike lane if you're...

It's easy to miss the 4th Ave bike lane if you're used to riding on city streets -- it's another substandard-width, wrong-side bike lane, like the old 2nd Ave Bike Lane of Death, with the same...
01-03-15, 02:31 PM
Replies: 64
Views: 3,655
Posted By jputnam

Advocacy groups find "cycle track" generates...

Advocacy groups find "cycle track" generates negative reactions among non-cyclists and casual cyclists, the "track" part seems to have an athletic connotation.

"Protected bike lane" gets better...
01-02-15, 02:05 PM
Replies: 64
Views: 3,655
Posted By jputnam

"Protected Bike Lane" is an advocacy term that's...

"Protected Bike Lane" is an advocacy term that's been poll-tested to get positive reactions from non-cyclists. But if you look at their signage, at their definitions of who is supposed to do what,...
Forum: Commuting
12-28-14, 11:50 AM
Replies: 39
Views: 7,332
Posted By jputnam

I've seen that done, I imagine any good...

I've seen that done, I imagine any good industrial supply shop could find you an eyelet-style retainer the right size.

I believe the standard ones are used simply because they don't get changed...
12-28-14, 11:45 AM
Replies: 97
Views: 3,601
Posted By jputnam

Pick any topic you want, and read the comments...

Pick any topic you want, and read the comments sections of the news sites.

You'll generally find the comments driven by an isolated, intolerant minority who find no other outlet for their...
12-28-14, 11:31 AM
Replies: 64
Views: 3,655
Posted By jputnam

Actually, if you'll check out SDOT's signs, those...

Actually, if you'll check out SDOT's signs, those are bike *paths*, not bike *lanes.* It's an important legal difference, the right-of-way rules are quite different for both cyclists and motorists....
12-28-14, 11:26 AM
Replies: 64
Views: 3,655
Posted By jputnam

The newer of Seattle's two-way sidepaths, 2nd...

The newer of Seattle's two-way sidepaths, 2nd Avenue, incorporated a lot of improvements from the failed Broadway sidepath, the other one that made the "top 10 list."

2nd Ave has separate bicycle...
12-23-14, 08:53 PM
Replies: 142
Views: 6,415
Posted By jputnam

California requires that headlights illuminate...

California requires that headlights illuminate the road in front of the bicyclist as well as being visible at 300 feet in front and to the sides of the bicycle. If the police knew and cared to...
12-23-14, 01:59 AM
Replies: 142
Views: 6,415
Posted By jputnam

Vehicle lighting is regulated by an entirely...

Vehicle lighting is regulated by an entirely separate agency, with data-driven safety standards and intense Congressional oversight.

Bicycles are regulated as toys by the CPSC, with no rigorous...
12-23-14, 01:28 AM
Replies: 142
Views: 6,415
Posted By jputnam

Do we have any reason to believe the standard...

Do we have any reason to believe the standard would be any more effectively designed than the CPSC toy-bicycle reflector standard?

I would expect it to require lights so dim and useless that...
12-23-14, 12:47 AM
Replies: 142
Views: 6,415
Posted By jputnam

Either that, or the requirements for the...

Either that, or the requirements for the mandatory lights will be watered down to make the lights so cheap they're worthless.
12-21-14, 10:14 PM
Replies: 12
Views: 1,013
Posted By jputnam

If you're comfortable with the MSF approach, be...

If you're comfortable with the MSF approach, be prepared for the average rec cyclist to denounce "victim blaming" any time you suggest that defensive cycling tactics could have helped someone avoid a...
12-18-14, 09:58 PM
Replies: 15
Views: 1,215
Posted By jputnam

Do you need to look cool, or just have good...

Do you need to look cool, or just have good glasses for riding?

I wear $40 titanium aviator frames for riding, not cool wraparound glasses, but excellent eye protection and much better field of...
12-18-14, 09:48 PM
Replies: 59
Views: 2,926
Posted By jputnam

My commuter and touring bikes both use dynamo...

My commuter and touring bikes both use dynamo lighting, so I just leave it turned on all the time, no worry about battery life, and LED life is long enough that I don't worry about it the way I did...
12-18-14, 09:43 PM
Replies: 59
Views: 2,926
Posted By jputnam

OECD says daytime running lights are effective on...

OECD says daytime running lights are effective on cyclists even in the Danish environment where motorists are used to looking for cyclists.

Cycling, Health and Safety | OECD READ edition...
12-16-14, 12:40 AM
Replies: 80
Views: 4,975
Posted By jputnam

Not quite true -- you're right about the back,...

Not quite true -- you're right about the back, steady amber is not generally allowed, but steady amber lighting is mandatory on the front of many vehicles, it's the required color for front clearance...
12-12-14, 09:57 AM
Replies: 24
Views: 1,629
Posted By jputnam

Life conspires to make me carry two cell phones...

Life conspires to make me carry two cell phones most waking hours -- two different sets of security and regulatory restrictions, can't get away with just one device, and they need to be readily...
12-12-14, 09:40 AM
Replies: 25
Views: 1,593
Posted By jputnam

That *is* good news! The idea that you sell more...

That *is* good news! The idea that you sell more people on bicycling by constantly suggesting it's a dangerous activity is, frankly, bizarre.

Why the industry let itself get sucked into...
12-12-14, 09:31 AM
Replies: 323
Views: 12,425
Posted By jputnam

The report doesn't give enough detail to know if...

The report doesn't give enough detail to know if the numbers are outrageous or not.

Do the projects include added right-of-way? That can be hideously expensive in already-developed locations.
...
Forum: Commuting
12-10-14, 04:18 PM
Replies: 30
Views: 9,437
Posted By jputnam

If your hubs are tight enough to cause...

If your hubs are tight enough to cause significant drag in real-world use, you'll know from the smoke when the grease catches fire, shortly before the bearings split.

Seriously, bearings that are...
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