نتایج جستجو برای: traffic volume estimation

تعداد نتایج: 661059  

In traditional traffic assignment procedure, each traffic analysis zone is represented by one point in its geometric center which is connected to the network by several connectors. Results of studies show that different connector patterns would result up to 10% change in estimated volume and up to 20% change in total travel time. Also the different patterns of connectors can change the priority...

Journal: :international journal of civil engineering 0
i.a. hansen delft university of technology

the paper discusses the current state of research concerning railway network timetabling and traffic management. timetable effectiveness is governed by frequency, regularity, accurate running, recovery and layover times, as well as minimal headway, buffer times and waiting times. analytic (queuing) models and stochastic microsimulation are predominantly used for estimation of waiting times and ...

Journal: :Transportation Research Record: Journal of the Transportation Research Board 2016

Journal: :Atmosphere 2022

Traffic information from the distance matrix application program interface (API), which is a part of Google Maps API service, was used to develop near real-time traffic emissions inventory in Bangkok. The provided includes and traveling time, can be an Underwood model for volume estimation. speed-dependent emission factors, road volume, were estimated based on API, fleet composition, estimate c...

Journal: :Proceedings of the Japan Society of Civil Engineers 1983

Accurate estimation of saturation flow rate is a prerequisite for accurate estimation of level of service and delays of signalized intersections. Saturation flow rate of intersections depends on many factors, including traffic behavior and culture. One of the important problems of traffic behavior in Iran is the violation of law at the physical region of intersections. The main purpose of this ...

Travels within the city are done in different ways, by vehicle or on foot. Thus, inevitably, a part of the travel is always done on foot. Since intersections as traffic nodes are determinant factor in transportation network capacity, any disruption in them leads to severe reduction in network capacity. Unfortunately, pedestrian behavior has received little attention in Iran. While this is a ver...

Journal: :CoRR 2018
Hee Seok Lee Kang Kim

We propose a novel traffic sign detection system that simultaneously estimates the location and precise boundary of traffic signs using convolutional neural network (CNN). Estimating the precise boundary of traffic signs is important in navigation systems for intelligent vehicles where traffic signs can be used as 3D landmarks for road environment. Previous traffic sign detection systems, inclu...

Journal: :Comput. Sci. Inf. Syst. 2014
Hui Tian Yingpeng Sang Hong Shen Chunyue Zhou

Traffic matrix is of great help in many network applications. However, it is very difficult to estimate the traffic matrix for a large-scale network. This is because the estimation problem from limited link measurements is highly underconstrained. We propose a simple probability model for a large-scale practical network. The probability model is then generalized to a general model by including ...

2017
Jan-Mou Li Lee D. Han Chung-Hao Chen

Inductance loop detection systems serve as a primary data source to contemporary traffic information systems. Measures like 20-second or 30-second average velocity, flow, and lane occupancy can be aggregated from individual loop detector actuation sampled at 60 Hz typically. Practically, these measures would sometimes be further aggregated into a much lower, e.g. 15-minute, resolution and then ...

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