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Channelization of at-grade intersections is the separation or regulation of conflicting traffic movements into definite paths of travel by the use of pavement markings, raised islands, or other suitable means to facilitate the safe and orderly movement of both vehicles and pedestrians.
A modal filter, sometimes referred to as a point closure, [1] is a road design that restricts the passage of certain types of vehicle in road transport. Modal filtering is often used to help create a low traffic neighbourhood (LTN), where motor traffic is diverted away from residential streets [ 2 ] [ 3 ] and instead toward feeder roads .
It focuses mainly on research for safe and efficient traffic flow, such as road geometry, sidewalks and crosswalks, cycling infrastructure, traffic signs, road surface markings and traffic lights. Traffic engineering deals with the functional part of transportation system, except the infrastructures provided.
Circular curves are defined by radius (tightness) and deflection angle (extent). The design of a horizontal curve entails the determination of a minimum radius (based on speed limit), curve length, and objects obstructing the view of the driver. [4] Using AASHTO standards, an engineer works to design a road that is safe and comfortable.
A recent comparison of seven neighbourhood layouts found a 43 and 32 percent increase in walking with respect to a conventional suburban and the traditional grid in a Fused Grid layout, which has greater permeability for pedestrians than for cars due to its inclusion of pedestrian-only paths (filtering). It also showed a 7 to 10 percent range ...
The goal of shared space is to improve the road safety and vibrancy of roads and junctions, particularly ones with high levels of pedestrian traffic, by encouraging negotiation of priority in shared areas between different road users. [1] [6] Shared space is a "design approach rather than a design type characterised by standard features". [7]
According to Charles Marohn, a stroad is a bad combination of two types of vehicular pathways: it is part street—which he describes as a "complex environment where life in the city happens", with pedestrians, cars, buildings close to the sidewalk for easy accessibility, with many (property) entrances / exits to and from the street, and with spaces for temporary parking and delivery vehicles ...
Highway engineering (also known as roadway engineering and street engineering) is a professional engineering discipline branching from the civil engineering subdiscipline of transportation engineering that involves the planning, design, construction, operation, and maintenance of roads, highways, streets, bridges, and tunnels to ensure safe and effective transportation of people and goods.