The GP Explorer or Grand Prix Explorer was a Formula 4 car competition bringing together 22 Internet personalities organized by the French YouTuber Squeezie .
63-595: The first edition was held on October 8, 2022 at the Circuit Bugatti in Le Mans . Broadcast live on Twitch , it became the most viewed French Twitch stream, reaching a peak of over one million viewers and averaging 400,000 just to be beaten one month later by Eleven All Stars, a football event organized by AmineMaTue. Originally a challenge during the ZEvent 2020 , the first edition was held on October 8, 2022 at
126-406: A 2,000 kg (4,400 lb) pickup truck traveling 100 km/h (62 mph), colliding with the rail at a 25-degree angle. Flexible barriers include cable barriers and weak post corrugated guide rail systems. These are referred to as flexible barriers because they will deflect 1.6 to 2.6 m (5.2 to 8.5 ft) when struck by a typical passenger car or light truck. Impact energy
189-407: A black lid. Fitch barriers are often found in a triangular arrangement at the end of a guard rail between a highway and an exit lane (the area known as the gore ), along the most probable line of impact. The barriers in front contain the least sand, with each successive barrel containing more. When a vehicle collides with the barrels, the vehicle's kinetic energy is dissipated by the shattering of
252-518: A bypass within the city shortened the track in 1929, but the city was only bypassed completely in 1932, when the section from the pits via the Dunlop Bridge and the Esses to Tertre Rouge was added. This classic configuration was 13.492 km (8.384 mi) long and remained almost unaltered even after the 1955 tragedy . Its frighteningly narrow pit straight was further narrowed to make room for
315-519: A chicane was added to the very fast Dunlop curve, where cars would go under the Dunlop bridge at 180 mph (290 km/h). Now they would be slowed to 110 mph (180 km/h). Le Mans was most famous for its 6 km (3.7 mi) long straight, called Ligne Droite des Hunaudières , a part of the route départementale (for the Sarthe département ) D338 (formerly Route Nationale N138 ). As
378-452: A critical component of comprehensive security planning at nuclear facilities . The NRC's detailed guidelines on vehicle barriers demonstrate its commitment to maintaining high standards of safety and security at U.S. nuclear sites . Adherence to these regulations is crucial for mitigating risks associated with vehicle-based threats. Traffic barriers are categorized in two ways: by the function they serve, and by how much they deflect when
441-520: A formidable deterrent against potential threats, including vehicle-borne attacks and unauthorized access. Road blockers are equipped with mechanisms that allow for quick deployment and retraction when needed, providing a flexible and effective means of traffic control and security management. Platform barriers , Platform screen doors (PSDs) without the doors, are used when PSDs are not feasible due to cost, technological compatibility or other factors. Barriers are divided into three groups, based on
504-410: A greater threat to general health and well-being of the public than the obstacle it intends to protect. In many regions of the world, the concept of clear zone is taken into account when examining the distance of an obstacle or hazard from the edge of travelway. Clear zone , also known as clear recovery area or horizontal clearance is defined (through study) as a lateral distance in which a motorist on
567-420: A median and striking an oncoming vehicle in a head-on crash . Unlike roadside barriers, they must be designed to be struck from either side. Bridge barriers are designed to restrain vehicles from crashing off the side of a bridge and falling onto the roadway, river or railroad below. It is usually higher than roadside barrier, to prevent trucks, buses, pedestrians and cyclists from vaulting or rolling over
630-410: A one-sided traffic barrier. Recycled tyres had been proposed for highway crash barriers by 2012, but many governments prefer sand-filled crash barriers because they have excellent energy-absorption characteristics and are easier to erect and dismantle. A Fitch Barrier is an energy-absorbing type of impact attenuator consisting of a group of sand-filled plastic barrels, usually yellow in color with
693-462: A recoverable slope may travel outside of the travelway and return their vehicle safely to the roadway. This distance is commonly determined as the 85th percentile in a study comparable to the method of determining speed limits on roadways through speed studies and varies based on the classification of a roadway. In order to provide for adequate safety in roadside conditions, hazardous elements such as fixed obstacles or steep slopes can be placed outside of
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#1732793719824756-409: A speed of 400 km/h (250 mph) on the famous straight), although the official team entry was named WM Secateva. Roger Dorchy and Claude Haldi would be the drivers of car 51 while Pascal Pessiot and Jean-Daniel Raulet would drive the team's other car (#52). The latter lasted only 22 laps, and car 51 went into the pits around 17:00 in the afternoon with engine problems. After spending 3.5 hours in
819-420: A vehicle crashes into them. Roadside barriers are used to protect traffic from roadside obstacles or hazards, such as slopes steep enough to cause rollover crashes, fixed objects like bridge piers , and bodies of water. Roadside barriers can also be used with medians, to prevent vehicles from colliding with hazards within the median. Median barriers are used to prevent vehicles from crossing over
882-635: A weather station in Le Mans, which exhibits an oceanic climate ( Köppen Cfb ). With both the 24-hour races and the French MotoGP round being run before the peak of summer, high-profile races often have cool temperatures both in terms of ambient and track conditions with rainfall being a potential factor. Although nights cool off, sometimes into the single-digits, during the 24-hour car race, air frosts have never been recorded in June. The weather station
945-408: Is a motorsport museum located at the main entrance of the venue. Up to 85% of the lap time is spent on full throttle, putting immense stress on engine and drivetrain components. Additionally, the times spent reaching maximum speed also mean tremendous wear on the brakes and suspension as cars must slow from over 322 km/h (200 mph) to around 100 km/h (62 mph) for the sharp corner at
1008-552: Is composed of steel-reinforced plastic boxes that are put in place where needed, linked together to form a longitudinal barrier, then ballasted with water. These have an advantage in that they can be assembled without heavy lifting equipment, but they cannot be used in freezing weather. Road blockers are used to enhance security by preventing unauthorized or hostile vehicles from entering sensitive or protected locations, such as government buildings, military installations, airports, embassies, and high-security facilities. They act as
1071-415: Is dissipated through deformation of the rail elements, posts, soil and vehicle bodywork, and friction between the rail and vehicle. Box beam systems also spread the impact force over a number of posts due to the stiffness of the steel tube. Rigid barriers are usually constructed of reinforced concrete. A permanent concrete barrier will only deflect a negligible amount when struck by a vehicle. Instead,
1134-495: Is dissipated through tension in the rail elements, deformation of the rail elements, posts, soil and vehicle bodywork, and friction between the rail and vehicle. Semi-rigid barriers include box beam guide rail, heavy post blocked out corrugated guide rail and thrie-beam guide rail. Thrie-beam is similar to corrugated rail, but it has three ridges instead of two. They deflect 3 to 6 feet (0.91 to 1.83 m): more than rigid barriers, but less than flexible barriers. Impact energy
1197-786: Is located at the local airport just a few hundred metres from the main grandstand and pit lane of the circuit. Traffic barrier Traffic barriers (known in North America as guardrails or guard rails , in Britain as crash barriers , and in auto racing as Armco barriers ) keep vehicles within their roadway and prevent them from colliding with dangerous obstacles such as boulders, sign supports, trees, bridge abutments, buildings, walls, and large storm drains , or from traversing steep (non-recoverable) slopes or entering deep water. They are also installed within medians of divided highways to prevent errant vehicles from entering
1260-595: The 24 Hours of Le Mans motorcycle race , and a round of the MotoGP Championship . The circuit also holds French motor club races and in the past has hosted rounds of the International Formula 3000 Championship and DTM (German Touring Car series). In addition to motor racing, it is the venue for the 24 rollers , a 24h race on inline skates or quads. The Bugatti Circuit was used for the 1967 French Grand Prix , though it would prove to be
1323-733: The Mulsanne Straight before the 1990 race to limit the maximum achievable speed. The chicanes were also added because the FIA decreed it would no longer sanction a circuit which had a straight longer than 2 km (1.2 mi), which is roughly the length of the Döttinger Höhe straight at the Nürburgring Nordschleife . The fastest qualifying lap average speed though only dropped from 249.826 to 243.329 km/h (155.235 to 151.198 mph) in 1992. In 1994,
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#17327937198241386-450: The "gating" feature allows the vehicles to pass through the rail as it bends. If space allows, a guide rail may also be terminated by gradually curving it back to the point that the terminal is unlikely to be hit end-on, or, if possible, by embedding the end in a hillside or cut slope. An alternative to energy absorbing barrier terminals are impact attenuators . These are used for wider hazards that cannot be effectively protected with
1449-401: The 1920s, the cars drove from the present pits on Rue de Laigné straight into the city, and after a sharp right-hand corner near the river Huisne Pontlieue bridge (a hairpin permanently removed from the circuit in 1929), before exiting the city again on the rather straight section now named Avenue Georges Durand after the race's founder. Then 17.261 km (10.725 mi) long and unpaved,
1512-409: The 1969 race. The "Maison Blanche" kink was particularly harrowing, claiming many cars over the years (including three Ferrari 512 variants) and several lives, including the legendary John Woolfe in 1969 behind the wheel of a Porsche 917 . The circuit has been modified ten more times — 1971, a year when prototypes were averaging over 240 km/h (150 mph), was the last year the classic circuit
1575-531: The Bugatti Circuit in Le Mans, bringing together 22 French web streamers and YouTubers, divided into eleven teams. Participating streamers trained for several months, with some such as Seb la Frite obtaining racing licenses. The first race was won by Sylvain Levy (from the duo Vilebrequin), with Depielo and Etienne Moustache completing the podium. During qualifying, Joyca was involved in a major accident at
1638-563: The Dunlop chicane was tightened. In 2002, the run to the Esses was reconfigured in the wake of renovations to the Bugatti Circuit. The Le Mans circuit was changed between the Dunlop Bridge and Esses, with the straight now becoming a set of fast sweeping turns. This layout allowed for a better transition from the Le Mans circuit to the Bugatti circuit. This layout change would also require the track's infamous carnival to be relocated near
1701-596: The Hunaudières leads to the village of Mulsanne, it is often called the Mulsanne Straight in English, even though the proper Route du Mulsanne is the one from or to Arnage. After exiting the Tertre Rouge corner, cars spent almost half of the lap at full throttle, before braking for Mulsanne Corner. The Porsche 917 long tail , used from 1969 to 1971, had reached 362 km/h (225 mph). After engine size
1764-676: The Porsche curves, and in 2006, the ACO redeveloped the area between the Dunlop Curve and Tertre Rouge, moving the Dunlop Chicane in even tighter to create more run-off area, while also turning the area after the Dunlop Chicane into an even larger set of fast, sweeping turns, known as the Esses en route to Tertre Rouge. As part of the development, a new extended pit lane exit was created for the Bugatti Circuit. This second pit exit re-enters
1827-530: The amount they deflect when struck by a vehicle and the mechanism the barrier uses to resist the impact forces. In the United States , traffic barriers are tested and classified according to the AASHTO Manual for Assessing Safety Hardware (MASH) standards, which recently superseded Federal Highway Administration NCHRP Report 350. Barrier deflections listed below are results from crash tests with
1890-430: The angled lower section. For low-speed or low-angle impacts on these barriers, that may be sufficient to redirect the vehicle without damaging the bodywork. The disadvantage is there is a higher likelihood of rollover with a small car than the single slope or step barriers. Impact forces are resisted by a combination of the rigidity and mass of the barrier. Deflection is usually negligible. An early concrete barrier design
1953-478: The ban in 1998 to the entire National Highway System . To address the vaulting and rollover crashes, a new type of terminals were developed. The first generation of these terminals in the 1970s were breakaway cable terminals, in which the rail curves back on itself and is connected to a cable that runs between the first and second posts (which are often breakaway posts). These barrier terminals were sometimes able to spear through small cars that hit them at exactly
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2016-429: The barrier and falling over the side of the structure. Bridge rails are usually multi-rail tubular steel barriers or reinforced concrete parapets and barriers. Work zone barriers are used to protect traffic from hazards in work zones. Their distinguishing feature is they can be relocated as conditions change in the road works. Two common types are used: temporary concrete barrier and water-filled barrier. The latter
2079-468: The barrier, potentially causing the vehicle to roll over. However, along parkways and other areas where aesthetics are considered important, reinforced concrete walls with stone veneers or faux stone finishes are sometimes used. These barrier walls usually have vertical faces to prevent vehicles from climbing the barrier. For several decades after the invention of motor vehicles, designers of early traffic barriers paid little attention to their ends, so that
2142-422: The barriers either ended abruptly in blunt ends, or sometimes featured some flaring of the edges away from the side of the barrier facing traffic. Vehicles that struck blunt ends at the wrong angle could stop too suddenly or suffer penetration of the passenger compartment by steel rail sections, resulting in severe injuries or fatalities. Traffic engineers have learned through such gruesome real-world experience that
2205-402: The clear zone in order to reduce or eliminate the need for roadside protection. Common sites for installation of traffic barrier: When a barrier is needed, careful calculations are completed to determine length of need. The calculations take into account the speed and volume of traffic volume using the road, the distance from the edge of travelway to the hazard, and the distance or offset from
2268-435: The edge of travelway to the barrier. In accordance with U.S. regulations for nuclear power plants , the U.S. Nuclear Regulatory Commission (NRC) addresses vehicle barriers under 10 CFR Part 73 , specifically in 10 CFR 73.55(e)(10) Vehicle Barriers. This section requires licensees to "use physical barriers and security strategies [via strategic planning ] to protect against land vehicle borne explosive devices ". Here,
2331-612: The ends of barriers are just as important as the barriers themselves; the American Association of State Highway and Transportation Officials devotes an entire chapter to the topic of barrier "end treatments" in its Roadsign Design Guide . In response, a new style of barrier terminals was developed in the 1960s in which the installers were directed to twist the guardrail 90 degrees and bring its end down so that it would lie flat at ground level (so-called "turned-down" terminals or "ramped ends"). While this innovation prevented
2394-450: The event broadcast live on Twitch gathered just over one million concurrent viewers, becoming the most viewed French stream and one of the top 10 most viewed streams on the platform. Circuit Bugatti The Circuit des 24 Heures du Mans , also known as Circuit de la Sarthe (after the 1906 French Grand Prix triangle circuit) located in Le Mans , Sarthe , France , is a semi-permanent motorsport race course , chiefly known as
2457-426: The exit of the Dunlop curve which severely damaged his car. The mechanics managed to repair the car and the videographer was able to start the race. He reacts: "I got there, in the big Dunlop of death, there's a wall that's a little scary, well I took it." In 2022, the third position trophy was given by Matthieu Vaxiviere , the second position by Bigflo & Oli and the winning trophy by Jamel Debbouze . In 2022,
2520-459: The fastest official race lap records at the Circuit de la Sarthe for different classes are listed as: In 1988 , Team WM Peugeot were well aware of their slim chance of winning the 24-hour endurance race outright, but they knew that their Welter Racing designed car had exceptional straight line aerodynamics. Thus they nicknamed their 1988 entry "Project 400" (aiming to be the first car to achieve
2583-573: The focus is on safeguarding the protected area and vital areas of nuclear facilities from unauthorized vehicle access, emphasizing the need for effective barrier systems against potential vehicular threats. The regulation highlights the importance of designing and implementing barriers that are robust enough to withstand various threat scenarios, including different types of vehicles and potential explosive devices . The integration of these barriers with other security measures, such as surveillance , access control , and intrusion detection systems , forms
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2646-536: The larger circuit and a separate, purpose-built section. The sections of track on the Bugatti Circuit that are on the Circuit des 24 Heures include the Ford Chicane at the end of the lap, the pit complex, and the straight where the Dunlop Tyres bridge is located. At this point in the overlapping section of the tracks there is a left-right sweep that was added for motorcycle safety in 2002. Vehicles turning to
2709-481: The left continue onto the Circuit des 24 Heures, toward Tertre Rouge and Mulsanne, vehicles turning to the right at La Chapelle will continue the Bugatti Circuit. The infield section features Garage Vert, a back straight, the 'S' du Garage Bleu, and Raccordement, which joins back at the Ford chicane. The track was home base for Pescarolo Sport , founded by famous French driver Henri Pescarolo . The circuit currently hosts
2772-464: The new record as "405". This has led to many people mistakenly stating the record as only 405 km/h (252 mph), but Dorchy's best run down the Mulsanne straight was clocked at 407 km/h (253 mph). Bugatti Circuit is a 4.185 km (2.600 mi) permanent race track located within Circuit des 24 Heures, constructed in 1965 and named after Ettore Bugatti . The circuit uses a part of
2835-717: The only time the Formula One World Championship would use the circuit, and is the current host of the French motorcycle Grand Prix . It also forms the final round of the FIA European Truck Racing Championship , and was part of the World Series by Renault and 1988 Superbike World Championship seasons . As of May 2024, the fastest official race lap records at the Bugatti Circuit are listed as: Météo France runs
2898-414: The opposing carriageway of traffic and help to reduce head-on collisions . Some of these barriers, designed to be struck from either side, are called median barriers. Traffic barriers can also be used to protect vulnerable areas like school yards, pedestrian zones , and fuel tanks from errant vehicles. In pedestrian zones, like school yards, they also prevent children or other pedestrians from running onto
2961-417: The performance limits of traffic barriers and provide an adequate level of protection to road users. Roadside hazards must be assessed for the danger they pose to traveling motorists based on size, shape, rigidity, and distance from the edge of travelway. For instance, small roadside signs and some large signs (ground-mounted breakaway post) often do not merit roadside protection as the barrier itself may pose
3024-404: The pits and was part of the road itself, without the road becoming wider around the pits, and no separation. The pit straight then was about 3.7 m (12 ft) wide, further widened in 1956 after the tragedy, but the race track and pits were not separated for another 15 years. Car speeds increased dramatically in the 1960s, pushing the limits of the "classic circuit" and sparking criticism of
3087-463: The pits, the team had the car back on the track and they decided to go for it. The plan worked: with Roger Dorchy behind the wheel the WM P87 achieved the speed of 407 km/h (253 mph). The Peugeot retired shortly after that (on lap 59) with an overheating engine. By then it had outlasted two other Group C1 entrants. Since Peugeot had just launched its new model 405, the team agreed to advertise
3150-547: The rail from penetrating the vehicle, it could also vault a vehicle into the air or cause it to roll over, since the rising and twisting guardrail formed a ramp. These crashes often led to vehicles vaulting, rolling, or vaulting and rolling at high speed into the very objects which guardrails or barriers were supposed to protect them from in the first place. Such wild crashes caused the United States to ban ramped ends in 1990 on high-speed, high-volume highways, and to extend
3213-671: The road. While barriers are normally designed to minimize injury to vehicle occupants, injuries do occur in collisions with traffic barriers. They should only be installed where a collision with the barrier is likely to be less severe than a collision with the hazard behind it. Where possible, it is preferable to remove, relocate or modify a hazard, rather than shield it with a barrier. To make sure they are safe and effective, traffic barriers undergo extensive simulated and full scale crash testing before they are approved for general use. While crash testing cannot replicate every potential manner of impact, testing programs are designed to determine
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#17327937198243276-414: The shape of a concrete barrier is designed to redirect a vehicle into a path parallel to the barrier. This means they can be used to protect traffic from hazards very close behind the barrier, and generally require very little maintenance. Impact energy is dissipated through redirection and deformation of the vehicle itself. Jersey barriers and F-shape barriers also lift the vehicle as the tires ride up on
3339-400: The track as being unsafe after several trials related fatalities occurred. In 1965, a smaller, but permanent, Bugatti Circuit was added which shares the pit lane facilities and the first corner (including the famous Dunlop bridge) with the full "Le Mans" circuit. For the 1968 race, the Ford chicane was added before the pits to slow down the cars. The circuit was fitted with Armco barriers for
3402-441: The track being resurfaced. In 1979, due to the construction of a new public road, the profile of "Tertre Rouge" had to be changed. This redesign led to a faster double-apex corner and saw the removal of the second Dunlop Bridge. In 1986, construction of a new roundabout at the Mulsanne corner demanded the addition a new portion of track in order to avoid the roundabout. This created a right hand kink prior to Mulsanne corner. In 1987,
3465-423: The track just beyond the Dunlop Chicane and before the Dunlop Bridge. Following the fatal crash of Danish driver Allan Simonsen at the 2013 race at the exit of Tertre Rouge into D338, Tertre Rouge was re-profiled again. The radius was moved in approximately 200 m (220 yd) for safety reasons with new tyre barriers at the exit. The current version of the track has been in use since 2018. As of June 2024,
3528-418: The venue for the 24 Hours of Le Mans auto race . Comprising private, race-specific sections of track in addition to public roads which remain accessible most of the year, its present configuration is 13.626 km (8.467 mi) long, making it one of the longest circuits in the world. The capacity of the race stadium, where the short Bugatti Circuit is situated, is 100,000. The Musée des 24 Heures du Mans
3591-520: The village of Mulsanne . The road racing track, which was a triangle from Le Mans down south to Mulsanne , northwest to Arnage , and back north to Le Mans, has undergone many modifications over the years, with CIRCUIT N°15 being in use since 2018. Even with the modifications put in place over the years, the Sarthe circuit is still known for being very fast, with prototype cars achieving average lap speeds in excess of 240 km/h (150 mph). In
3654-520: The wrong angle and were deprecated in 1993. The second generation of these terminals, called energy-absorbing terminals, was developed in the 1990s and 2000s. The goal was to develop a kinetic energy dissipating system soft enough for small vehicles to decelerate without causing the guardrail to spear through them, but firm enough to stop larger vehicles. The energy dissipation could be done through bending, kinking, crushing, or deforming guardrail elements. The first family of energy-absorbing terminal products
3717-429: Was clocked by radar travelling at 407 km/h (253 mph). Jean-Louis Lafosse and Jo Gartner would ultimately suffer from fatal high speed accidents in 1981 and 1986, respectively, leading to concerns with the growing speeds on the 3.7 mi (6.0 km) straight. As the combination of high speed and high downforce caused tyre and engine failures, two roughly equally spaced chicanes were consequently added to
3780-536: Was developed by the New Jersey State Highway Department. This led to the term Jersey barrier being used as a generic term, although technically it applies to a specific shape of concrete barrier. Other types include constant-slope barriers , concrete step barriers , and F-shape barriers . Concrete barriers usually have smooth finishes. At some impact angles, coarse finishes allow the drive wheel of front wheel drive vehicles to climb
3843-492: Was limited, the top speed dropped until powerful turbo engines were allowed, like in the 1978 Porsche 935 , which was clocked at 367 km/h (228 mph). Speeds on the straight by the Group C prototypes reached over 400 km/h (250 mph) during the late 1980s. At the beginning of the 1988 24 Hours of Le Mans race, Roger Dorchy driving for Welter Racing in a "Project 400" car, which sacrificed reliability for speed,
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#17327937198243906-410: Was the extruding terminal type. It features a large steel impact head that engages the frame or bumper of the vehicle in head-on collisions. The impact head is driven back along the guide rail, dissipating the vehicle's kinetic energy by bending or tearing the steel in the guide rail sections away to the side to prevent spearing. When the terminals are hit in an angle, they dissipate much of the energy but
3969-407: Was used. That year, an Armco barrier was added to the pit straight to separate the track from the pits. In 1972, the race track was considerably revamped, at a cost of 300 million francs , with modification of the pit area and the first and final straights, the addition of the quick Porsche curves bypassing "Maison Blanche", the signalling area being moved to the exit of the slow Mulsanne corner, and
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