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Old 11-18-2017, 11:23 AM   #31
Ralph Herl
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I note that the disclaimer makes no mention of motorcycling being dangerous... just lane-splitting!

I'm just glad the word "delta" does not appear in the terms.

Thanks for putting that together, and I hope it reaches as many riders as possible. Could be a handy handout at local moto shops.
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Old 11-18-2017, 01:46 PM   #32
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I also added some older documents I wrote.
Lane Sharing tips <--- yes sharing
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Old 11-18-2017, 04:26 PM   #33
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Great to see this! Simple, short, to the point and well thought out.
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Old 11-18-2017, 08:56 PM   #34
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Nice work. Traffic *is* a cheerless grind for everyone. Together we can get home alive
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Old 11-19-2017, 10:41 AM   #35
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Think it's worth mentioning to know where the other surrounding vehicles blind spots are when splitting past them.

And also looking for front wheels starting to point to change lanes

Solid list for sure!!
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Old 11-19-2017, 01:56 PM   #36
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Those are noted in the Lane Sharing tips along with others. Much more comprehensive.
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Old 11-19-2017, 02:46 PM   #37
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Looks good, budman!

The only message (not words) that I would have liked to see was thet stopping distance squares with distance, making higher speeds significantly dangerous and rain not only reduces your ability to react as quickly but also reduces not only the drivers ability to see and hear you but your ability to see everything that is going on.

Granted, those are two difficult concepts to put into few words.

As always, and I know I'm not alone in this, definitely appreciate the time, energy and experience that you put into efforts for the community like this.
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Old 11-21-2017, 09:46 AM   #38
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Good info! Thank you for "sharing" -
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Old 11-22-2017, 09:25 AM   #39
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What are the general recommendations for deltas when:
1. cars completely stoped
2. cars barely moving 10-20mph
3. cars moving less than speed limit 20-60

I caught myself doing a over 30 mph yesterday when cars were completely stopped on the highway. My brain didn't register it as being dangerous but once I saw the 30+ delta I slowed down a little. Generally try to stick to <20mph delta since 20 mph can be scrubbed off near instantly.
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Old 11-22-2017, 09:40 AM   #40
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1. 10-15 on the freeway. 5-10 when filtering in town at a red light.
2. 10-15 still applies
3. 10-15 still applies, but personally at higher speeds I may wick the throttle a little more once into the space between two cars assuming their is a clear space ahead. Just to get through to a safe zone quickly and safely.
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Old 11-22-2017, 10:57 AM   #41
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Originally Posted by dangerzone02 View Post
What are the general recommendations for deltas when:
1. cars completely stoped
2. cars barely moving 10-20mph
3. cars moving less than speed limit 20-60

I caught myself doing a over 30 mph yesterday when cars were completely stopped on the highway. My brain didn't register it as being dangerous but once I saw the 30+ delta I slowed down a little. Generally try to stick to <20mph delta since 20 mph can be scrubbed off near instantly.
This is a dangerous underestimation. At +20mph, vehicles within 50ft (about 3 car lengths) are an immediate threat. If a vehicle 2 car-lengths ahead suddenly changes lanes, you're going to hit it. Probably not very hard, and if you go down, you probably won't be seriously injured. But you won't be able to prevent the collision.

My estimate assumes 1 second reaction and 16ft/s^2 deceleration (MSF-level braking skill--I don't know what the TCT standard is).
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Old 11-22-2017, 12:04 PM   #42
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This is a dangerous underestimation. At +20mph, vehicles within 50ft (about 3 car lengths) are an immediate threat. If a vehicle 2 car-lengths ahead suddenly changes lanes, you're going to hit it. Probably not very hard, and if you go down, you probably won't be seriously injured. But you won't be able to prevent the collision.

My estimate assumes 1 second reaction and 16ft/s^2 deceleration (MSF-level braking skill--I don't know what the TCT standard is).
20 mph is ~30ft/sec. 3 cars length, should be avoidable. <2 cars length and yeah, breaking alone probably wont save you.

Its so difficult to judge. Too bad there isn't an accurate way to test/practice a car pulling out in front of you.
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Old 11-22-2017, 12:17 PM   #43
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My advice follows the research study and that is that most accidents lane splitting occur at speeds above the speed differential (Delta between you and surrounding cars).

That extra 10MPH or whatever is providing little in terms of time saved and increases the danger greatly. Many splitting accidents occur with little space between you and a car shooting for the open gap and therefore the time and space you think you have may not be there for you.
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Old 11-22-2017, 12:17 PM   #44
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Yes, 30ft per second, but it’s still going to take you 0.75-1.0sec to perceive and react.
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Old 11-22-2017, 02:39 PM   #45
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To address the easier said than done:

"Training and practicing is essential to operating the controls smoothly which will help you overcome the tendancy to panic in emergency situations."

IOW, what you should do, how you should do it ,why you should it and the results of doing it.
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