Vehicular cycling (also known as bicycle driving) is the practice of riding bicycles on roads in a manner that is in accordance with the principles for driving in traffic, and in a way that places responsibility for safety on the individual.
The phrase vehicular cycling was coined by John Forester in the 1970s. In his book Effective Cycling, Forester contends that "Cyclists fare best when they act and are treated as drivers of vehicles". These techniques have been adopted by the League of American Bicyclists and other organizations teaching safe riding courses for cyclists. As a method for strong and confident riders to cope with fast motor traffic, many recommendations of vehicular cycling are widely accepted.
A vehicular cyclist is one that travels within the roadway in accordance with the basic vehicular rules of the road that are shared by all drivers and adhering to traffic controls.[a] Vehicular cyclists, Forester advises, should feel and act like vehicle drivers, and should smoothly and safely flow with other vehicles.[b]
- Ride on the road, with the direction of traffic.[d]
- Yield to crossing traffic at junctions with larger roads.
- Yield to traffic in any lane you are moving to, or when you are moving laterally on the road.
- Position yourself appropriately at junctions when turning — near the curb when turning off the road on the side you are travelling on, near the center line when turning across the other side of the road,[e] and in the center when continuing straight on.
- Ride in a part of the road appropriate to your speed; typically, faster traffic is near the center line.
Lane control is the essential practice of controlling a lane (also known as "taking the lane") when a cyclist encounters a scenario that would be unsafe to be squeezed to the right of the lane, such as a double parked car or a car door opening. Controlling the lane is a technique to assert control of the space one needs to feel safe and to temporarily preclude another vehicle passing within the same lane.
Due to the relatively narrow nature of bicycles, road lanes are sometimes wide enough to allow them to safely share lanes side by side with motor vehicles. In lanes where this is possible, vehicular cycling suggests riding about 1 metre (3.3 ft) to the outside of overtaking traffic and about the same distance from roadside hazards such as the gutter seam. Cyclists can also filter forward past stopped motor traffic. Where they exist, wide outside lanes may also be shared in order to facilitate being overtaken by faster traffic.
When riding in a lane sharing position, vehicular cycling specifies that cyclists must yield to overtaking traffic using the other part of the lane, or obtain right-of-way to move over through negotiation before moving laterally into that space.
Speed and destination positioning
Vehicular cyclists use "speed positioning" between intersections. The basic principle is "slower traffic keeps to the outside; faster traffic to the inside". When lanes are marked, vehicular cyclists generally operate in the outermost travel lane. When lanes are not marked, vehicular cyclists generally operate as far to the outside of the traveled way as is reasonably efficient and safe.
As vehicular cyclists approach a junction of ways, the principle of "destination positioning" comes into play, and they should position themselves laterally according to their destination (left, straight or right):
- Where lanes are marked, vehicular cyclists approaching a junction should choose the outermost lane that serves their destination.
- When lanes are not marked, vehicular cyclists approaching a junction will travel along the inside of their side of the road if turning toward the inside, along the outer side if turning to the outside, and in between if going straight.
Vehicular cyclists do not avoid riding in bicycle lanes, rather they decide whether to ride in the space demarcated as a bike lane based on their own judgement about safety. They are also advised to stay outside of the door zone; when passing motor vehicles that are parked parallel to the road, no closer than the largest estimated width of an open door, plus some margin for error.
The cycling skills manual Cyclecraft, the foundation of Bikeability, the UK's national standard for cycle training, defines the terms primary riding position, where the cyclist will be more visible and predictable to motor vehicle traffic, as being in the center of the traffic lane, and secondary riding position as being 1 metre (3.3 ft) to the side of moving traffic, but not closer than 0.5 metres (1.6 ft) from the edge of the road. It states that it is sensible to use the primary riding position as the normal position, only using the secondary riding position when it is safe, reasonable, and necessary to allow faster traffic to pass.
On multi-lane roadways, some vehicular cyclists ride on the inside of the outermost lane (on the side furthest from the road edge in the lane nearest the road edge), for enhanced visibility to motor vehicle traffic. This position may be indicated by road markings.[f]
Cyclists should always be looking back over one's shoulder as an essential skill, in order to
- maintain awareness of other vehicles on the road
- safely navigate and merge with other traffic
- broadcast the cyclist's desire (to move laterally or turn) to other road users so that they can better predict the cyclist's path
- see if someone who's overtaking is about to make a mistake and enter the cyclist's path
Particularly in slow traffic, a cyclist's look to the rear may serve as a signal, allowing the cyclist to keep both hands on the handlebar. However, a cyclist may also use a hand signal (arm extended to the side) to request that an overtaking driver make room. The cyclist then follows up with a second look to the rear to assure that the driver has made room.
Negotiation is a technique for cyclists to safely traverse one or more lanes by merging in with the flow of other traffic. The basic method is to negotiate for the use of the adjacent lane, move into that lane, and then repeat the process for any additional lanes. The cyclist moves only when there is a natural gap in motor traffic to move into, or after someone slows down explicitly to allow them to move over.
The steps of the process for each lane change are:
- Look back for traffic that may be overtaking in the target lane.
- Wait for a sufficient gap to change lanes. Ideally, make eye contact with the other driver and use a hand signal to request an approaching driver in the target lane to yield right of way by slowing down and leaving unoccupied space in the lane in front of them.
- Move into the lane and control it.
The movement surrounding vehicular cycling has also been criticized for its effect on bicycle advocacy in general. In Pedaling Revolution, Jeff Mapes states that Forester "fought bike lanes, European-style cycletracks, and just about any form of traffic calming", and "saw nothing wrong with sprawl and an auto-dependent lifestyle." Zack Furness is highly critical of vehicular cyclists in One Less Car: Bicycling and the Politics of Automobility, arguing that their criticism of 'political' cyclists "totally ignores all the relevant socioeconomic, physical, material, and cultural factors that influence—and in most cases dictate—everyday transportation choices." Critical Mass co-founder Chris Carlsson describes vehicular cycling as a naive, polarizing "ideology" that "essentially advocates bicyclists should strive to behave like cars on the streets of America." The makeup of vehicular cycling advocates as a group in the United States was criticized in the 1990s for being typically club cyclists that are well educated, upper-middle income or wealthy, suburban, and white, representing a social and economic elite that are able to dominate public discussions of cycle planning issues.
Segregated cycling as an alternative
Segregated cycle facilities exist in some areas, allowing cycling without sharing roads with motorized traffic. Cities that are structured that way report a high degree of bicycle usage and low injury rates, such as in The Netherlands. A 2001 study in Edmonton, Alberta, Canada concluded that cyclists found 1 minute of cycling in mixed traffic as onerous as 4.1 minutes on bike lanes or 2.8 minutes on bike paths. A study of cyclists in Washington D.C. found that cyclists were willing to spend on average 20.38 extra minutes per trip to travel on an off-street bicycle trail when the alternative was riding on a street with parked cars. Forester believes segregated cycle facilities to be more dangerous than on-road cycling and that, in the case of sidepaths, they can only be used safely by cycling "very slowly". Urban planning professor John Pucher writes that "Forester makes a number of theoretical arguments why bikeways are unsafe." Forester objects to rejection of his test results.
Pucher's various transnational studies of bicycle transportation lead him to conclude that "the overwhelming evidence is that cycling is much safer and more popular precisely in those countries where bikeways, bike lanes, special intersection modifications, and priority traffic signals are the key to their bicycling policies." The authors of a 2009 meta-study on cycle infrastructure safety research at the University of British Columbia similarly conclude that "in comparison to cycling on bicycle-specific infrastructure (paths, lanes, routes), on-road cycling appears to be less safe."
Forester objects to Pucher's conclusions, primarily on the grounds that Pucher ascribes the increase in use of bikes and bike safety observed to the bikeways without showing that the bikeways are the actual cause of the increased use or safety.
Jennifer Dill and Theresa Carr's research on bicycle transportation in 35 U.S. cities also suggests that "higher levels of bicycle infrastructure are positively and significantly correlated with higher rates of bicycle commuting"; and a 2010 study comparing streets in Copenhagen that had had cycle tracks and bicycle lanes added to them found that cycling volume increased 20%. However, on the cycle track streets bicycle accidents increased 10% more than would be expected from the changed bicycle and automobile traffic volumes, making the cycle tracks less safe for cyclists than the unmodified roads. Streets with bicycle lanes added saw a 5% increase in bicycle traffic but a 49% increase in bicycle accidents. Despite this, the study notes that "the gains in health from increased physical activity [from increased numbers cycling are] much, much greater than the losses in health resulting from a slight decline in road safety." Although prior studies did not differentiate between new bike riders and those that had changed routes due to the new facility, recent research has shown that the greater level of protection, the greater number of new bike riders (as opposed to riders who used the route before construction or shifted routes).
- CAN-BIKE, the Canadian vehicular cycling course
- Smart Cycling, the League of American Bicyclists' vehicular cycling course
- Outline of cycling
- Utility cycling
- Such as yield (give way) signs, stop signs and traffic lights.
- In Bicycle Transportation, Forester writes that "there is much more to the vehicular-cycling principle than only obeying the traffic laws for drivers. The vehicular-style cyclist not only acts outwardly like a driver, he knows inwardly that he is one. Instead of feeling like a trespasser on roads owned by cars he feels like just another driver with a slightly different vehicle, one who is participating and cooperation in the organized mutual effort to get to desired destinations with the least trouble."
- Forester asserts that "If you obey these five principles, you can cycle in many places you want to go with a low probability of creating traffic conflicts. You won't do everything in the best possible way, and you won't yet know how to get yourself out of troubles that other drivers may cause, but you will still do much better than the average American bicyclist."
- For cycling in particular, collisions at intersections (defined broadly as "not only the junction of two roadways, but also points where driveways, sidewalks, or paths meet a roadway, or where sidewalks or paths meet a driveway") while traveling in the wrong direction against traffic has been determined to be over three times more likely for wrong-way cyclists. Wrong-way cycling increases closing speeds and wrong-way cyclists are easily overlooked by motorists at intersections. Wrong-way cycling also makes bike-bike collisions more likely.
- Depending which side of the road traffic moves on, this may be turning left or right. Forester's book, being written in the United States, assumes traffic driving on the right.
- In Salt Lake City, this left-of-center position is painted by the City in green along with shared lane markings on several downtown roadways.
- Forester (1993), p. [page needed].
- Forester (1993), p. 285.
- Forester (1994), p. 3.
- Forester (1993), p. 246.
- Wachtel & Lewiston (1994), pp. 30–35.
- IPMBA (2008), p. 77.
- Forester (1993), p. 272.
- Forester (1993), p. 284.
- Forester (1993), p. 297.
- Franklin (1997), pp. 58–59.
- Page (2008), p. [page needed].
- Mapes (2009), p. [page needed].
- Furness (2010), pp. 72–73.
- Carlsson (2007), p. 87.
- Epperson (1995).
- Hunt & Abraham (2007), pp. 453–470.
- TRBNA (2006), p. 38.
- Forester (2001), p. [page needed].
- Forester (2010), p. [page needed].
- Pucher (2001), p. [page needed].
- Reynolds et al. (2009), p. 47.
- Dill & Carr (2003), pp. 116–123.
- Jensen, Rosenkilde and Jensen, p. [page needed]
- Jensen (2007), p. [page needed].
- Monsere & Dill (2014), p. [page needed].
- Carlsson, Chris (2007). ""Outlaw" Bicycling". Affinities: A Journal of Radical Theory, Culture and Action. Simon Fraser University. 1 (1). Retrieved 2012-08-07.
- Dill, Jennifer; Carr, Theresa (2003). "Bicycle Commuting and Facilities in Major U.S. Cities: If You Build Them, Commuters Will Use Them – Another Look" (PDF). Transportation Research Record (1828). doi:10.3141/1578-10.
- Epperson, Bruce (1995). "Bicycle Planning: Growing Up or Growing Old?". Race, Poverty & the Environment. 6 (1): 42–4. JSTOR 41554228.
- Forester, John (1993). Effective Cycling (6th ed.). MIT Press. ISBN 0-262-06159-7.
- Forester, John (1994). Bicycle Transportation (2nd ed.). MIT Press. ISBN 0-262-06085-X.
- Forester, John (1996). "Listening to Bike Lanes: Moving Beyond the Feud: by Jeffrey A. Hiles, 1996: Review by John Forester". Retrieved 13 June 2013.
- Forester, John (Spring 2001). "The Bicycle Transportation Controversy". Transportation Quarterly. Eno Transportation Foundation. 55 (2). Retrieved 10 August 2010.
- Forester, John. "Review of the Cycling Aspects of: Making Walking & Cycling Safer: Lessons from Europe". Retrieved 10 August 2010.
- Franklin, John (1997). Cyclecraft. The Stationery Office. ISBN 0-11-702051-6.
- Furness, Zack (2010). One Less Car: Bicycling and the Politics of Automobility. Temple University Press. ISBN 978-1-59213-613-1.
- Hunt, JD; Abraham, JE (July 2007). "Influences on Bicycle Use" (PDF). Transportation. 34 (4). doi:10.1007/s11116-006-9109-1. Retrieved 2012-08-07.
- International Police Mountain Bike Association (2008). The Complete Guide to Public Safety Cycling. Jones and Bartlett. ISBN 978-0-7637-4433-5.
- Jensen, Søren Underlien; Rosenkilde, Klaus; Jensen, Niels. "Road safety and perceived risk of cycle facilities in Copenhagen" (PDF). Trafitek. Retrieved 2010-08-08.
- Jensen, Søren Underlien (2007). "Bicycle Tracks and Lanes: A Before-After Study" (PDF). Trafitek. Retrieved 2010-08-10.
- Mapes, Jeff (2009). Pedaling Revolution: How Cyclists are Changing American Cities. Oregon State University. ISBN 978-0-87071-419-1. Retrieved 2012-08-07.
- Monsere, Christopher; Dill, Jennifer (June 2014). "Lessons from the Green Lanes: Evaluating Protected Bike Lanes in the U.S." Transportation Research Board.
- Page, Jared (2008-09-18). "S.L. cyclists get share of lane on 200 South". Deseret News. Retrieved 2012-08-09.
- National Cooperative Highway Research Program (2006). "NCHRP Report 552: Guidelines for Analysis of Investments in Bicycle Facilities" (PDF). Washington, D.C.: Transportation Research Board. Retrieved 2012-01-11.
- Pucher, John (Fall 2001). "Cycling Safety on Bikeways vs Roads" (PDF). Transportation Quarterly. Eno Transportation Foundation. 55 (4). Retrieved 2016-06-22.
- Reynolds, Conor CO; Harris, M Anne; Teschke, Kay; Cripton, Peter A; Winters, Meghan (October 2009). "The Impact of Transportation Infrastructure on Bicycling Injuries and Crashes: A Review of the Literature". Environmental Health. 8 (47): 47. doi:10.1186/1476-069X-8-47. PMC 2776010. PMID 19845962. Retrieved 2010-07-02.
- Tanner, Michael (June 4, 2009). "Safe streets: Workshops help cyclists trim risk". San Francisco Chronicle. pp. F–32. Retrieved June 9, 2009.
- Wachtel, Alan; Lewiston, Diana (September 1994). "Risk Factors for Bicycle-Motor Vehicle Collisions at Intersections" (PDF). ITE Journal. Institute of Transportation Engineers.
- Video of instructors from the League of American Bicyclists demonstrating lane control.
- Bicycling Street Smarts: Riding Confidently, Legally and Safely by John S. Allen. Free full text.