2.1 Traffic Principles

Slide 1: 

Iowa Bicycle Coalition www.iowabicyclecoalition.org 2.1 Traffic Principles

Slide 2: 

Apply in any traffic situation Avoid conflicts and collisions Decrease the likelihood of a crash Make your ride more enjoyable. Iowa Bicycle Coalition www.iowabicyclecoalition.org Principles of Traffic Law

Principles of Traffic Law : 

Principles of Traffic Law First Come First Served Iowa Bicycle Coalition www.iowabicyclecoalition.org Principles of Traffic Law

Principles of Traffic Law : 

Principles of Traffic Law Drive on the Right-hand Side of the Roadway Iowa Bicycle Coalition www.iowabicyclecoalition.org Principles of Traffic Law

Principles of Traffic Law : 

Principles of Traffic Law Never be a wrong-way rider Iowa Bicycle Coalition www.iowabicyclecoalition.org Principles of Traffic Law

Principles of Traffic Law : 

Principles of Traffic Law Yielding to Crossing Traffic Iowa Bicycle Coalition www.iowabicyclecoalition.org

Principles of Traffic Law : 

Principles of Traffic Law Minor roads yield to traffic on major roads. Iowa Bicycle Coalition www.iowabicyclecoalition.org Principles of Traffic Law

Principles of Traffic Law : 

Principles of Traffic Law Yielding when Changing Lanes Iowa Bicycle Coalition www.iowabicyclecoalition.org Principles of Traffic Law

Speed Positioning : 

Speed Positioning Parked cars on right. Faster cars in center lanes. Iowa Bicycle Coalition www.iowabicyclecoalition.org

Never overtake on the right. : 

Never overtake on the right.

Speed Positioning : 

Speed Positioning Slower Faster

Exceptions: : 

Exceptions: When turning left On multi-lane roads Iowa Bicycle Coalition www.iowabicyclecoalition.org

Intersection Positioning : 

Intersection Positioning

Right turners are next to the curb : 

Right turners are next to the curb

Right turners next to the curb : 

Right turners next to the curb

Right turners next to the curb : 

Right turners next to the curb

Slide 17: 

Right Turn Iowa Bicycle Coalition www.iowabicyclecoalition.org

Slide 18: 

Right Turn Iowa Bicycle Coalition www.iowabicyclecoalition.org

Left turners are near the centerline : 

Left turners are near the centerline

Left turners are near the centerline : 

Left turners are near the centerline

Left turners are near the centerline : 

Left turners are near the centerline

Slide 22: 

Left Turn Iowa Bicycle Coalition www.iowabicyclecoalition.org

Straight-through drivers are between these positions. : 

Straight-through drivers are between these positions.

Straight-through drivers are between these positions. : 

Straight-through drivers are between these positions.

Slide 25: 

Straight Through Iowa Bicycle Coalition www.iowabicyclecoalition.org

Intersection Positioning : 

Intersection Positioning Travel in the rightmost lane that the normal flow of traffic follows to your destination. Iowa Bicycle Coalition www.iowabicyclecoalition.org

Bicycling in Traffic : 

Bicycling in Traffic As a bicycle rider, you: are recognized as a legal driver of a vehicle in all states (Iowa Code §321.234). drive your bicycle as you would any vehicle. obey all traffic laws, signs and signals. Iowa Bicycle Coalition www.iowabicyclecoalition.org

When the lane is wide enough to safely share. : 

When the lane is wide enough to safely share.

The lanes are too narrow to safely share – Center or right hand tire track. : 

The lanes are too narrow to safely share – Center or right hand tire track. Lanes too narrow to share Iowa Bicycle Coalition www.iowabicyclecoalition.org

If traveling at the speed of traffic, take the lane traveling faster than other traffic, overtake on the left : 

If traveling at the speed of traffic, take the lane traveling faster than other traffic, overtake on the left Iowa Bicycle Coalition www.iowabicyclecoalition.org

Slide 31: 

Rightmost Lane that goes to your destination Iowa Bicycle Coalition www.iowabicyclecoalition.org

Right most turn lane : 

Right most turn lane Rightmost lane Iowa Bicycle Coalition www.iowabicyclecoalition.org

In single-destination lanes, ride on the right-hand side of the lane. : 

In single-destination lanes, ride on the right-hand side of the lane.

In multiple-destination lanes, ride in the side of the lane appropriate for your destination and current traffic conditions. : 

In multiple-destination lanes, ride in the side of the lane appropriate for your destination and current traffic conditions. A B C D E F G H I

Changing Lanes Safely : 

Changing Lanes Safely Confident and assertive, but not reckless. Iowa Bicycle Coalition www.iowabicyclecoalition.org

Changing Lanes Safely : 

Changing Lanes Safely In order to successfully change lanes: Plan ahead Look behind, perhaps several times Signal his or her intention Act carefully, smoothly and deliberately Negotiate as necessary Never move in front of another vehicle so close as to constitute a hazard Iowa Bicycle Coalition www.iowabicyclecoalition.org

Changing Lanes Safely : 

Changing Lanes Safely When the surrounding traffic is not more than 15 miles per hour faster than the cyclist, negotiate with overtaking motorists make two moves per lane. Iowa Bicycle Coalition www.iowabicyclecoalition.org

Slide 38: 

You Are Here You Need Turn Here

Slide 39: 

Plan Ahead

Slide 40: 

Scan Ahead Signal

Slide 41: 

Change Lane Position

Slide 42: 

Scan & Signal Again

Slide 43: 

Change Lanes

Slide 44: 

Signal and Scan Again

Slide 45: 

Change Lane Position

Slide 46: 

Signal to Turn

Passing Parked Cars : 

Passing Parked Cars

Slide 48: 

Door Zone Iowa Bicycle Coalition www.iowabicyclecoalition.org

One-Way Street Dual Destination : 

One-Way Street Dual Destination

Slide 50: 

Iowa Bicycle Coalition www.iowabicyclecoalition.org

Right-Turn Lane : 

Right-Turn Lane

Right-Turn Only Lane : 

Right-Turn Only Lane

Two-Way Street : 

Two-Way Street

Road with Left Turn Only Lane : 

Road with Left Turn Only Lane

Road with Continuous Left Turn Lane : 

Road with Continuous Left Turn Lane

Multi-Lane Road with No Turn Lane : 

Multi-Lane Road with No Turn Lane

2.1 Traffic Principles Summary : 

Iowa Bicycle Coalition www.iowabicyclecoalition.org 2.1 Traffic Principles Summary First come, first served Drive on right hand side Never wrong way Yield to crossing traffic Scan and yield when changing lanes Speed positioning Turning Bicycling in traffic Avoid the door zone