Go Back  Bike Forums > Bike Forums > Advocacy & Safety
Reload this Page >

Why do BL's have solid lines?

Search
Notices
Advocacy & Safety Cyclists should expect and demand safe accommodation on every public road, just as do all other users. Discuss your bicycle advocacy and safety concerns here.

Why do BL's have solid lines?

Thread Tools
 
Search this Thread
 
Old 12-30-06, 06:27 PM
  #51  
Senior Member
 
Brian Ratliff's Avatar
 
Join Date: May 2002
Location: Near Portland, OR
Posts: 10,123

Bikes: Three road bikes. Two track bikes.

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 47 Post(s)
Liked 4 Times in 4 Posts
Originally Posted by MarkS
If they were serious about BL's, they'd be lined with bots dots. These would have almost the full effect of an actual barrier. But its a tool to get cyclists out of way -- not to protect cyclists. And painting white lines is fast, easy, and apparently makes politicians feel good.
No, actually you have this precisely bass ackwards. IF the road designers were serious about keeping cyclists out of the full sized traffic lanes, then they would put up a barrier such as Bott Dots, which impedes a cyclist's ability to cross the line much more than it does a car (ever hit one of these when you weren't expecting it on a road bike? The bike jumps up and out of control and can be a serous fall hazard.). Since what you are suggesting is merely a conspiracy theory and cyclists are in fact able to merge freely in and out of bike lanes (at least in most areas where I'm from), this is why there are no Botts Dots separating cyclists from cars.

The white line is always used to denote a special use lane. It is just a convention; there are probably better conventions which can be used. In many places in Europe, the bike lane is denoted by a "dotted" line, at least in the rural areas. You can see this in Tour de France footage.
__________________
Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --the tiniest sprinter
Brian Ratliff is offline  
Old 12-30-06, 07:18 PM
  #52  
www.theheadbadge.com
 
cudak888's Avatar
 
Join Date: Sep 2005
Location: Southern Florida
Posts: 28,513

Bikes: https://www.theheadbadge.com

Mentioned: 124 Post(s)
Tagged: 0 Thread(s)
Quoted: 2422 Post(s)
Liked 4,395 Times in 2,092 Posts
Not sure if anyone has mentioned this, or if such a setup would be legal, but would there be any pitfalls to a solid outside line with a dashed line immidiately to the right of it, impling that cyclists may exit the bike lane, but that cars may not enter it? Just a thought.

-Kurt
__________________












cudak888 is offline  
Old 12-30-06, 07:53 PM
  #53  
Avatar out of order.
 
MarkS's Avatar
 
Join Date: Apr 2004
Location: North of the border, just
Posts: 895

Bikes: Fuji Absolut '04 / Fuji 'Marlboro' Folder

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Brian Ratliff
No, actually you have this precisely bass ackwards. IF the road designers were serious about keeping cyclists out of the full sized traffic lanes, then they would put up a barrier such as Bott Dots, which impedes a cyclist's ability to cross the line much more than it does a car (ever hit one of these when you weren't expecting it on a road bike? The bike jumps up and out of control and can be a serous fall hazard.). Since what you are suggesting is merely a conspiracy theory and cyclists are in fact able to merge freely in and out of bike lanes (at least in most areas where I'm from), this is why there are no Botts Dots separating cyclists from cars.
No. I hit Botts Dots at about 25 MPH at one location and its not that hard to stay with the machine. If I can do it anyone can. Certainly not as bad a problem as the potholes along harbor drive. Someone driving over them, on the other hand, gets a real wake-up call. Certainly anyone *can* drive over them, but most people don't like the sudden roaring sound. White lines, on the other hand, provide no more protection than doo-doo on the pavement.

I don't know about conspiracy theories. I'm just saying that the current white lines don't do anything for a cyclist that a wide lane couldn't do. The people that paint these lines are pretty careless, and its virtually impossible to tell a parking lane from bike lane strip in many places where I ride. In an age when more people are driving under the influence of electronic play toys the Botts might cut through the static.
__________________
Cars kill 45,000 Americans every year.
This is like losing a war every year, except without the parades.
MarkS is offline  
Old 12-30-06, 08:49 PM
  #54  
Commuter
Thread Starter
 
JohnBrooking's Avatar
 
Join Date: Dec 2004
Location: Southern Maine
Posts: 2,568

Bikes: 2006 Giant Cypress EX (7-speed internal hub)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by cudak888
Not sure if anyone has mentioned this, or if such a setup would be legal, but would there be any pitfalls to a solid outside line with a dashed line immidiately to the right of it, impling that cyclists may exit the bike lane, but that cars may not enter it? Just a thought.
Yes, LittleBigMan suggested that in post #16 back on page 1. GeneC and I agreed that this would be the perfect solution, and all we had to do was get it into the MUTCD manual so that it would be taken seriously.
JohnBrooking is offline  
Old 12-31-06, 02:03 AM
  #55  
Senior Member
 
Bruce Rosar's Avatar
 
Join Date: Jan 2005
Location: North Carolina, USA
Posts: 760

Bikes: Road, Mtn, Tandem

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by cudak888
... would there be any pitfalls to a solid outside line with a dashed line immidiately to the right of it, impling that cyclists may exit the bike lane, but that cars may not enter it?
The crossing of a marked line can be permitted, discouraged or prohibited. Quoting from the MUTCD:
Where crossing the lane line markings is discouraged, the lane line markings shall consist of a normal solid white line.
Where crossing the lane line markings with care is permitted, the lane line markings shall consist of a normal broken white line.
Note that these apply equally to everybody when they're operating a vehicle, regardless of how their vehicle is powered (pedals, motor, etc.)

Speaking of marked lanes, here are some traffic engineering terms and the beginning of their definition:
  1. Traveled Way—the portion of the [tt]roadway[/tt] ...
  2. Traffic Lane—that portion of a [tt]traveled way[/tt] ...
  3. Designated Bicycle Lane—a portion of a [tt]roadway or shoulder[/tt] ...
As for pitfalls, you'll have the same basic problem no matter what type of stripe is used: the separation of traffic by class between junctions with roads (i.e., intersections) always makes the challenge of avoiding collisions at junctions with non-roads (driveways, alleyways, paths, etc.) more difficult.

Last edited by Bruce Rosar; 01-02-07 at 07:56 AM.
Bruce Rosar is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.