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rattleCAD is a parametric 2D computer-aided design (CAD) software specific for bicycle design, [1] [2] in particular for design bicycle frame, [3] [4] developed by the Austrian cyclist and programmer Manfred Rosenberger since 2008. [5]
The lane-by-lane capacity and performance analysis method used by Sidra Intersection includes identifying any de facto exclusive lanes, unequal lane utilisation, lane change, modelling of short lanes (turn bays, lanes with parking upstream, and loss of a lane at the exit side) including delays and stops experienced by drivers in the queue upstream of short lane entry, and lane blockage in ...
A portable digital camera unit can be mounted to a pole and computer vision software is used to analyze traffic pattern including traffic counts. [6] [7] Traffic count software can now also classify vehicles - recording numbers of cars, trucks, bikes etc as well as total numbers - as well as registering how many travelled that way before. [8]
However, it is the power a car can produce at the wheels (wheel horsepower or whp) that matters when it comes to acceleration performance. Wheel horsepower equals brake horsepower minus drivetrain losses, which can be anywhere from about 10% to 25%. [12] Power-to-weight ratio: hp/lb hp/lb
To end the trip, the user parks the vehicle then ends the ride through the app. The price of the trip is immediately withdrawn from the user's payment method, unless using a pre-loaded Ride Pass. Lime requires users to take a picture of the parked vehicle and its surroundings to review whether the vehicle was parked improperly.
However, an upright bicycle still has a significantly narrower "useful" width, as the road contact is in the center and so the rider's hands/elbows/etc. might overhang the edge of the roadway or path without causing problems. In contrast, the wheel track of a velomobile is very nearly as wide as the vehicle itself, and so cannot overhang the edge.
These systems are sometimes referred to as bicycle barometers, [4] but the term is misleading because it indicates the measurement of pressure. Most counting stations only consist of sensors, the internal computing device, although some use a display to show the total number of cyclists of the day and the current year. [ 1 ]
The Bicycles May Use Full Lane sign in the US Federal Highway Administration's Manual on Uniform Traffic Control Devices may be used when lanes are too narrow for safe vehicle-bicycle side-by-side sharing This sign indicates that there is not sufficient space for safe vehicle-bicycle side-by-side sharing Shared Lane Marking, called a Sharrow, which has a similar function to the message shown above