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Dutch Roundabout
A protected intersection or protected junction, also known as a Dutch-style junction, is a type of at-grade road junction in which cyclists and pedestrians are separated from cars. The primary aim of junction protection is to help pedestrians and cyclists be and feel safer at road junctions.Richard Butler, Jonathan Salter, Dave Stevens, Brian Deegan (July 2019). Greater Manchester’s cycling and walking network: CYCLOPS – Creating Protected Junctions/ref> At a conventional junction, pedestrians are separated from motor vehicles, while cyclists are placed in the carriageway with motorists. Cycle lanes are often placed on the nearside (right in right-side driving countries; left in left-side countries) of the carriageway, which can create conflict, for example when a cyclist is going straight ahead and a motorist is turning to the nearside. At a protected junction, vehicles turning to the nearside are separated from crossing cyclists and pedestrians by a buffer, providing inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protected Intersections For Bicyclists
Protection is any measure taken to guard something against damage caused by outside forces. Protection can be provided to physical objects, including organisms, to systems, and to intangible things like civil and political rights. Although the mechanisms for providing protection vary widely, the basic meaning of the term remains the same. This is illustrated by an explanation found in a manual on electrical wiring: Some kind of protection is a characteristic of all life, as living things have evolved at least some protective mechanisms to counter damaging environmental phenomena, such as ultraviolet light. Biological membranes such as bark (botany), bark on trees and skin on animals offer protection from various threats, with skin playing a key role in protecting organisms against pathogens and excessive water loss. Additional structures like Scale (anatomy), scales and hair offer further protection from the elements and from Predation, predators, with some animals having ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UCLA
The University of California, Los Angeles (UCLA) is a public land-grant research university in Los Angeles, California, United States. Its academic roots were established in 1881 as a normal school then known as the southern branch of the California State Normal School which later evolved into San José State University. The branch was transferred to the University of California to become the Southern Branch of the University of California in 1919, making it the second-oldest of the ten-campus University of California system after the University of California, Berkeley. UCLA offers 337 undergraduate and graduate degree programs in a range of disciplines, enrolling about 31,600 undergraduate and 14,300 graduate and professional students annually. It received 174,914 undergraduate applications for Fall 2022, including transfers, the most of any university in the United States. The university is organized into the College of Letters and Science and twelve professional schoo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traffic Flow
In transportation engineering, traffic flow is the study of interactions between travellers (including pedestrians, cyclists, drivers, and their vehicles) and infrastructure (including highways, signage, and traffic control devices), with the aim of understanding and developing an optimal transport network with efficient movement of traffic and minimal traffic congestion problems. The foundation for modern traffic flow analysis dates back to the 1920s with Frank Knight's analysis of traffic equilibrium, further developed by John Glen Wardrop, Wardrop in 1952. Despite advances in computing, a universally satisfactory theory applicable to real-world conditions remains elusive. Current models blend empirical and theoretical techniques to forecast traffic and identify congestion areas, considering variables like vehicle use and land changes. Traffic flow is influenced by the Complex system, complex interactions of vehicles, displaying behaviors such as cluster formation and shock wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclops Junction Design
In Greek mythology and later Roman mythology, the Cyclopes ( ; , ''Kýklōpes'', "Circle-eyes" or "Round-eyes"; singular Cyclops ; , ''Kýklōps'') are giant one-eyed creatures. Three groups of Cyclopes can be distinguished. In Hesiod's ''Theogony'', the Cyclopes are the three brothers, Brontes, Steropes, and Arges, who made Zeus's weapon, the thunderbolt. In Homer's ''Odyssey'', they are an uncivilized group of shepherds, the brethren of Polyphemus encountered by Odysseus. Cyclopes were also famous for being the builders of the Cyclopean walls of Mycenae and Tiryns. In ''Cyclops'', the fifth-century BC play by Euripides, a chorus of satyrs offers comic relief based on the encounter of Odysseus and Polyphemus. The third-century BC poet Callimachus makes the Hesiodic Cyclopes the assistants of smith-god Hephaestus, as does Virgil in the Latin epic ''Aeneid'', where he seems to equate the Hesiodic and Homeric Cyclopes. From at least the fifth century BC, Cyclopes have bee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pedestrian Crossing
A pedestrian crossing (or crosswalk in American and Canadian English) is a place designated for pedestrians to cross a road, street or Avenue (landscape), avenue. The term "pedestrian crossing" is also used in the Vienna Convention on Road Signs and Signals, Vienna and Geneva Convention on Road Traffic, Geneva Conventions, both of which pertain to road signs and road traffic. Marked pedestrian crossings are often found at Junction (road), intersections, but may also be at other points on busy roads that would otherwise be too unsafe to cross without assistance due to vehicle numbers, speed or road widths. They are also commonly installed where large numbers of pedestrians are attempting to cross (such as in shopping areas) or where vulnerable road users (such as school children) regularly cross. Rules govern usage of the pedestrian crossings to ensure safety; for example, in some areas, the pedestrian must be more than halfway across the crosswalk before the driver proceeds, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traffic Light
Traffic lights, traffic signals, or stoplights – also known as robots in South Africa, Zambia, and Namibia – are signaling devices positioned at intersection (road), road intersections, pedestrian crossings, and other locations in order to control the flow of traffic. Traffic lights usually consist of three signals, transmitting meaningful information to road users through colours and symbols, including arrows and bicycles. The usual traffic light colours are red to stop traffic, Amber (color), amber for traffic change, and green to allow traffic to proceed. These are arranged vertically or horizontally in that order. Although this is internationally standardised, variations in traffic light sequences and laws exist on national and local scales. Traffic lights were first introduced in December 1868 on Parliament Square in London to reduce the need for police officers to control traffic. Since then, electricity and computerised control have advanced traffic light technolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Truck Apron
Truck aprons are found at roundabouts and slip lanes. These allow large vehicles—trucks, buses, and recreational vehicles—to navigate the roundabout or turn without striking fixed objects or other road users. Truck apron construction According to Alberta Transportation, "truck aprons are designed to support the weight of large trucks and help long vehicles turn safely through roundabouts. Truck aprons are between the road portion of the roundabout and the inner circle of the roundabout. On slip lanes, the truck apron is located between the road surface (bitumen) and the sidewalk. Both in roundabouts and slip lanes the truck apron is raised slightly, in an attempt to keep light vehicles on the main road surface. The truck apron is constructed of reinforced concrete. In many parts of North America planners, designers, and builders attempted to make truck aprons and roundabouts more attractive by stamping and colouring the concrete. From a distance the concrete looks like red ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Idaho Stop
The Idaho stop is the common name for laws that allow bicyclists to treat a stop sign as a yield sign, and a traffic light, red light as a stop sign. It first became law in Idaho in 1982, but was not adopted elsewhere until Delaware adopted a limited stop-as-yield law, the "Delaware Yield", in 2017. Arkansas was the second US state to legalize both stop-as-yield and red-light-as-stop in April 2019. Studies in Delaware and Idaho have shown significant decreases in crashes at stop-controlled intersections. In France and Belgium, some intersections use red-light-as-yield signs. These exceptions for bicyclists respond to the fact that traffic light sensors may not recognize cyclists. Similar laws also encourage riders to take safer low-traffic streets instead of faster high-traffic roads. Legality by US state History The original Idaho yield law was introduced as Idaho HB 541 during a comprehensive revision of Idaho traffic laws in 1982. At the time, minor traffic off ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turn On Red
Turn on red is a principle of law permitting vehicles at a traffic light showing a red signal to turn into the direction of traffic nearer to them (almost always after a complete stop, depending on the jurisdiction) when the way is clear, without having to wait for a green signal. North American traffic engineers first introduced this rule as a fuel savings measure in the 1970s, despite detrimental effects to the safety of pedestrians. Canada and the United States are some of few major countries where turning on red is generally allowed. Amid a push to reduce pedestrian fatalities and make cities safer for pedestrians and bicyclists, some American localities have in recent years implemented bans on turning on red. Turns Right on red The simplest version is commonly known as a right turn on red (or simply right on red) in countries that drive on the right side of the road, or a left turn on red in countries that drive on the left side of the road. A right turn requires ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curb
A curb (American English) or kerb (British English) is the edge where a raised sidewalk/pavement or road median/central reservation meets a street/other roadway. History Although curbs have been used throughout modern history, and indeed were present in ancient Pompeii, their widespread construction and use only began in the 18th century, as a part of the various movements towards city beautification that were attempted in the period. A series of Paving Acts in the 18th century, especially the 1766 Paving and Lighting Act, authorized the City of London Corporation to create footways along the streets of London, pave them with Purbeck stone (the thoroughfare in the middle was generally cobblestone) and raise them above street level with curbs forming the separation. The corporation was also made responsible for the regular upkeep of the roads, including their cleaning and repair, for which they charged a tax from 1766. Previously, small wooden bollards had been put up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cycle Track
A cycle track or cycleway (''British'') or bikeway (''mainly North American''), sometimes historically referred to as a sidepath, is a separate route for cycles and not motor vehicles. In some cases cycle tracks are also used by other users such as pedestrians and horse riders (see shared-use route). A cycle track can be next to a normal road, and can either be a shared route with pedestrians (common in countries such as the United Kingdom) or be made distinct from both the pavement and general roadway by vertical barriers or elevation differences. In urban planning, cycle tracks are designed to encourage cycling and reduce motor vehicle congestion and pollution, cycling accidents (by alleviating the conflict between motor vehicles and cycles sharing the same road space) and general confusion and inconvenience for road users. Cycle tracks may be one-way or two-way, and may be at road level, at sidewalk level, or at an intermediate level. When located alongside normal roads, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protected Intersection Features
Protection is any measure taken to guard something against damage caused by outside forces. Protection can be provided to physical objects, including organisms, to systems, and to intangible things like civil and political rights. Although the mechanisms for providing protection vary widely, the basic meaning of the term remains the same. This is illustrated by an explanation found in a manual on electrical wiring: Some kind of protection is a characteristic of all life, as living things have evolved at least some protective mechanisms to counter damaging environmental phenomena, such as ultraviolet light. Biological membranes such as bark on trees and skin on animals offer protection from various threats, with skin playing a key role in protecting organisms against pathogens and excessive water loss. Additional structures like scales and hair offer further protection from the elements and from predators, with some animals having features such as spines or camouflage servi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
