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37-565: DRL may refer to: Science and technology [ edit ] Daytime running lamp Diode-resistor logic Driven right leg circuit Differential reinforcement of low response rate; see reinforcement Sport [ edit ] Deutscher Reichsbund für Leibesübungen , a Nazi German sports governing body Drone Racing League Transportation [ edit ] Derol railway station , in Gujarat, India Downtown Relief Line ,

74-578: A dim-dip device or functionally dedicated daytime running lamps, except those vehicles type-approved to ECE Regulation 48 regarding installation of lighting equipment—this exception was made because ECE R48 did not require dim-dip or daytime running lights, and while countries signatory to the ECE Regulations are permitted to maintain their own national regulations as an option to the ECE regulations, they are not permitted to bar vehicles approved under

111-562: A 42 W DRL system to a 160 W full headlight DRL systems. DRL fuel consumption can be reduced to insignificant levels by the use of 8 to 20 W DRL systems based on LEDs or high-efficacy filament bulbs. European Union Directive 2008/89/EC required all passenger cars and small delivery vans first type approved on or after 7 February 2011 in the EU to come equipped with daytime running lights. European Union Directive 2008/89/EC ended validity on 31 October 2014, implicitly repealed by

148-490: A daytime running lamp's luminous area may have an important influence on its effectiveness. DRL power consumption varies widely depending on the implementation. Current production DRL systems consume from 5 watts (dedicated LED system) to over 200 W (headlamps and all parking, tail, and marker lights on). International regulators, primarily in Europe, are working to balance the potential safety benefit offered by DRL with

185-605: A daytime-light requirement in 1972 on rural roads in wintertime, and in 1982 on rural roads in summertime and 1997 on all roads all year long; Norway in 1985, Iceland in 1988, and Denmark in 1990. To increase manufacturer flexibility in complying with the requirement for DRLs, the daytime illumination of low beam headlights was added as an optional implementation. Given the headlamp specifications in use in those countries, such an implementation would produce approximately 450 cd axially. UK regulations briefly required vehicles first used on or after 1 April 1987 to be equipped with

222-482: A defined field. In the past, Germany, Spain, France and other European countries have encouraged or required daytime use of low beam headlamps on certain roads at certain times of year; Ireland encourages the use of low beam headlights during the winter, Italy and Hungary require daytime running lamps outside populated areas, and Bulgaria, Czech Republic, Estonia, Kosovo, Latvia, Lithuania, North Macedonia, Montenegro, Poland, Romania, Serbia, Slovakia and Slovenia require

259-699: A former proposed subway line in Toronto, Canada DRL Coachlines , a Canadian bus company Other uses [ edit ] DRL (video game) Bureau of Democracy, Human Rights, and Labor of the United States Department of State David Rittenhouse Laboratory of the University of Pennsylvania Defence Research Laboratory of the Indian Defence Research and Development Organisation Dominion Rules Licence ,

296-617: A free content licence Paakantyi (Darling language) DRL Supply Co., a general store in Morrisonville, Illinois , U.S. Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title DRL . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=DRL&oldid=1099652820 " Category : Disambiguation pages Hidden categories: Short description

333-539: A result, the UK requirement for dim-dip was quashed. Nevertheless, dim-dip systems remain permitted, and while such systems are not presently as common as they once were, dim-dip functionality was fitted on many new cars (such as the Volkswagen Polo ) well into the 1990s. Canada Motor Vehicle Safety Standard 108 requires DRLs on all new vehicles made or imported after January 1, 1990. Canada's proposed DRL regulation

370-404: Is activism for motorcyclists seeking to establish and protect their rights, and to influence issues of interest to the motorcycling community. This includes lobbying organizations that work to influence laws, and groups or individuals who influence public attitudes. The British Motorcycle Action Group was founded in 1973 specifically in response to helmet compulsion, which generated debate in

407-473: Is decidedly mixed in the U.S. Thousands of complaints regarding glare from DRLs were lodged with the DOT shortly after DRLs were permitted on cars, and there was also concern that headlamp-based DRLs reduce the conspicuity of motorcycles, and that DRLs based on front turn signals introduce ambiguity into the turn signal system. In 1997, in response to these complaints and after measuring actual DRL intensity well above

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444-447: Is different from Wikidata All article disambiguation pages All disambiguation pages Daytime running lamp Depending on prevailing regulations and equipment, vehicles may implement the daytime-running light function by functionally turning on specific lamps, by operating low-beam headlamps or fog lamps at full or reduced intensity, by operating high-beam headlamps at reduced intensity, or by steady-burning operation of

481-542: Is released or when the vehicle is shifted into gear. A daytime running lamp emits a brighter light when the headlamps are not turned on and its brightness will be dimmed slightly in conjunction with the headlamps being turned on. A 2008 study by the U.S. National Highway Traffic Safety Administration analysed the effect of DRLs on frontal and side-on crashes between two vehicles and on vehicle collisions with pedestrians, cyclists, and motorcyclists. The analysis determined that DRLs offer no statistically significant reduction in

518-707: The 7,000 cd limit on vehicles in use, DOT proposed changes to the DRL specification that would have capped axial intensity at 1,500 cd, a level equivalent to the European 1,200 cd and identical to the initially proposed Canadian limit. During the open comment period, a volume of public comments were received by NHTSA in support of lowering the intensity or advocating the complete elimination of DRLs from U.S. roads. Automaker sentiment generally followed prevailing experience with European automakers experienced at complying with European DRL requirements voicing no objection to

555-466: The DRL intensity required for a safety improvement increases. The safety benefit produced by DRLs in relatively dark Nordic countries is roughly triple the benefit observed in the relatively bright United States. A number of motorcycling advocacy groups are concerned over reduced motorcycle conspicuousness and increased vulnerability with the introduction of headlamp-based DRLs on cars and other dual-track vehicles, since it means motorcycles are no longer

592-566: The ECE regulations. The dim-dip system operated the low beam headlamps (called "dipped beam" in the UK) at between 10% and 20% of normal low beam intensity. The running lamps permitted as an alternative to dim-dip were required to emit at least 200 cd straight ahead, and no more than 800 cd in any direction. In practice, most vehicles were equipped with the dim-dip option rather than the running lamps. The dim-dip lights were not intended for use as daytime running lights. Rather, they operated when

629-756: The Eastern seaboard, the Southeast, Gulf Coast and California have laws that require headlights to be switched on when windshield wipers are in use. DRLs are not considered headlights in most vehicle codes and so DRLs may not meet the letter of these laws in use. DRLs are permitted but not required in Australia, though the Australasian College of Road Safety, an Australian automotive safety group, advocates making DRLs mandatory rather than optional. Motorcycling advocacy Motorcycling advocacy

666-563: The North American market, petitioned the U.S. National Highway Traffic Safety Administration in 1990 to permit (but not require) US vehicles to be equipped with DRLs like those in Canada. NHTSA objected on grounds of the potential for high-intensity DRLs to cause problems, such as glare and turn signal masking, and issued a proposed rule in 1991 that specified a maximum intensity of 2,600 cd. Industry and safety watchdogs reacted to

703-465: The U.S. market beginning in 1995. In recent years, Lexus has installed high-beam or turn signal based DRLs on US models. Some Toyota models come with DRLs as standard or optional equipment, and with a driver-controllable on and off switch. Starting in the 2006 model year, Honda began equipping their U.S. models with DRLs, mostly by reduced-intensity operation of the high beam headlamps. Public reaction to DRLs, generally neutral to positive in Canada,

740-569: The UK House of Commons at the time. In addition, the British Motorcyclists Federation (BMF), founded in 1960 as a reaction to the public perception of motorcyclists as leather-jacketed hooligans, has itself moved into political lobbying. The American ABATE similarly works to improve motorcycle safety , as well as runs charity fund-raising events, and rallies, often for motorcycle-related political interests. In

777-554: The UK exempting followers of the Sikh religion wearing a turban . Worldwide, many countries have defined their own sets of standards that are used to judge the effectiveness of a motorcycle helmet in an accident, and define the minimal acceptable standard thereof. In some countries, most notably the United States and India, there is some opposition to compulsory helmet use (see Helmet Law Defense League ); not all U.S. states have

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814-723: The United States, the National Highway Traffic Safety Administration (NHTSA, part of the Department of Transportation ) has been the main federal government agency active in the debate over motorcycle rights for such things as off-road riding, vehicle requirements and helmets. Motorcycle helmets greatly reduce injuries and fatalities in motorcycle accidents, thus many countries have laws requiring acceptable helmets to be worn by motorcycle riders. These laws vary considerably, sometimes exempting mopeds and other small-displacement bikes, with

851-456: The beginning of 2011. LEDs and low-power, high-efficacy, long-life light bulbs produce appropriate amounts of light for an effective DRL without significantly increasing fuel consumption or emissions. Fuel consumption reductions of up to 0.5 mpg may be found when comparing a 55 W DRL system to a 200 W DRL system. In 2006, the UK's Department of Transport also found significant reductions in emissions and fuel consumption when comparing

888-405: The engine was running and the driver switched on the front position (parking) lamps . Dim-dip was intended to provide a nighttime "town beam" with intensity between that of the parking lamps commonly used at the time by British drivers in city traffic after dark, and low beam headlamps; the former were considered insufficiently intense to provide improved conspicuity in conditions requiring it, while

925-482: The frequency or severity of the collisions studied, except for a reduction in light trucks' and vans' involvement in two-vehicle crashes by a statistically significant 5.7%. The daytime running light was first mandated, and safety benefits first perceived, in Scandinavian countries where it is persistently dark during the winter season. As ambient light levels increase, the potential safety benefit decreases while

962-411: The front turn signals. Compared to any mode of headlamp operation to produce the daytime running light, functionally dedicated DRLs maximize the potential benefits in safety performance, glare, motorcycle masking, and other potential drawbacks. A daytime running lamp is usually automatically switched on once the ignition is on; other vehicles may switch the daytime running lamps on when the parking brake

999-401: The function was known as varselljus ("perception light" or "notice light"). The initial regulations in these countries favored devices incorporating 21 W signal bulbs identical to those used in brake lamps and turn signals, producing yellow or white light of approximately 400 to 600 cd on a axis , mounted at the outer left and right edges of the front of the vehicle. Finland adopted

1036-561: The increased fuel consumption due to their use. Because the power to run the DRLs must be produced by the engine, which in turn requires burning additional fuel, high-power DRL systems increase CO 2 emissions sufficiently to affect a country's compliance with the Kyoto protocol on greenhouse gas emissions . For that reason, low-power solutions are being encouraged and headlamp-based systems are not allowed after DRLs became mandatory in Europe at

1073-672: The latter were considered too glaring for safe use in built-up areas. The UK was the only country to require such dim-dip systems, though vehicles so equipped were sold in other Commonwealth countries with left-hand traffic . In 1988, the European Commission successfully prosecuted the UK government in the European Court of Justice , arguing that the UK requirement for dim-dip was illegal under EC directives prohibiting member states from enacting vehicle lighting requirements not contained in pan-European EC directives. As

1110-482: The only vehicles displaying headlamps during the day. Some researchers have suggested that amber DRLs be reserved for use exclusively on motorcycles, in countries where amber is not presently a permissible color for DRLs on any vehicles, while other research has concluded there is a safety disadvantage to two 90 mm x 520  candela (cd) DRLs on motorcycles in comparison to one 190 mm x 270 cd dipped (low) beam headlight. The latter result suggests that

1147-510: The proposal, and North American automakers repeating the same objections they raised in response to Canada's initial 1,500-cd proposal. The NHTSA proposal for DRL intensity reduction was rescinded in 2004, pending agency review and decision on a petition filed in 2001 by General Motors, seeking to have NHTSA mandate DRLs on all U.S. vehicles. The GM petition was denied by the NHTSA in 2009, on grounds of severe methodological and analytical flaws in

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1184-479: The proposed rule, and eventually the glare objections were set aside and most of the same types of DRLs allowed in Canada were permitted but not required effective with the 1995 model year. General Motors immediately equipped most (and, in following years, all) of its vehicles with DRLs beginning with the Chevrolet Corsica . Saab , Volkswagen , Volvo , Suzuki and Subaru gradually introduced DRLs in

1221-400: The regulation permitted automakers to implement a less costly DRL, such as by connecting the high beam filaments in series to supply each filament with half its rated voltage , or by burning the front turn signals full-time except when they are actually flashing as turn indicators. Shortly after Canada mandated DRLs, General Motors , interested in reducing the build variations of cars for

1258-720: The replacement Regulation (EC) No 661/2009. which was replaced by Directive 2019/2144. The mandate was extended to trucks and buses in August 2012. Using headlamps or front turn signals or fog lamps as DRLs is not permitted; the EU Directive requires functionally specific daytime running lamps compliant with ECE Regulation 87 and mounted to the vehicle in accordance with ECE Regulation 48. DRLs compliant with R87 emit white light on an axis of between 400 and 1,200 candela with an apparent surface of 25 cm to 200 cm with an additional requirement of between 1 and 1,200 candela in

1295-458: The studies and data provided by GM as evidence for a safety benefit to DRLs. In denying the petition, the NHTSA said: [...] the agency remains neutral with respect to a policy regarding the inclusion of DRLs in vehicles   [...] we do not find data that provides a definitive safety benefit that justifies Federal regulation   [...] manufacturers should continue to make individual decisions regarding DRLs in their vehicles. Several states on

1332-460: The use of full or reduced voltage low beam headlights at all times. Whether this requirement is met by the DRLs required on new cars since February 2011 is a matter of individual countries' laws. DRLs were first mandated in the Nordic countries , where ambient light levels in the winter are generally low even during the day. Sweden was the first country to require widespread DRLs in 1977. At the time,

1369-601: Was essentially similar to regulations in place in Scandinavia, with an axial luminous intensity limit of 1,500 cd, but automakers claimed it was too expensive to add a new front lighting device, and would increase warranty costs (due to increased bulb replacements) to run the low beams. After a regulatory battle, the standard was rewritten to permit the use of reduced-voltage high beam headlamps producing up to 7,000 axial candela, as well as permitting any light color from white to amber or selective yellow . These changes to

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