scholarly journals Characteristics of traffic flows at roundabouts in the city of Banja Luka before and during COVID-19 crisis

2021 ◽  
Vol 67 (4) ◽  
pp. 31-35
Author(s):  
Nemanja Garunovic ◽  
Vuk Bogdanović ◽  
Slavko Davidović ◽  
Valentina Mirović ◽  
Jelena Mitrović Simić
Keyword(s):  
Traffic Flow ◽  
Flow Characteristics ◽  
Traffic Condition ◽  
State Of Emergency ◽  
Flow Parameters ◽  
Pedestrian Traffic ◽  
The Difference ◽  
Banja Luka ◽  
Restrictive Measures ◽  
The City

COVID-19 pandemic caused many restrictive measures. Most of these measures were in the relationship with the restrictions of mobility which caused some differences in traffic flow demands. In this paper the comparative analysis of traffic flow characteristics at roundabouts in the City of Banja Luka was conducted. The analysis included two different states of traffic condition: the first one, normal condition before COVID-19 crisis, and the second one, during the state of emergency caused by the pandemic. The analysis shows the difference between some of motorized vehicle and pedestrian traffic flow parameters.

scholarly journals Characteristics of traffic flows at roundabouts in the city of Banja Luka before and during COVID-19 crisis

2021 ◽  
Vol 67 (4) ◽  
pp. 31-35
Author(s):  
Nemanja Garunovic ◽  
Vuk Bogdanović ◽  
Slavko Davidović ◽  
Valentina Mirović ◽  
Jelena Mitrović Simić
Keyword(s):  
Traffic Flow ◽  
Flow Characteristics ◽  
Traffic Condition ◽  
State Of Emergency ◽  
Flow Parameters ◽  
Pedestrian Traffic ◽  
The Difference ◽  
Banja Luka ◽  
Restrictive Measures ◽  
The City

COVID-19 pandemic caused many restrictive measures. Most of these measures were in the relationship with the restrictions of mobility which caused some differences in traffic flow demands. In this paper the comparative analysis of traffic flow characteristics at roundabouts in the City of Banja Luka was conducted. The analysis included two different states of traffic condition: the first one, normal condition before COVID-19 crisis, and the second one, during the state of emergency caused by the pandemic. The analysis shows the difference between some of motorized vehicle and pedestrian traffic flow parameters.

scholarly journals Developing a New Spatial Unit for Macroscopic Safety Evaluation Based on Traffic Density Homogeneity

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Chen Wang ◽  
Lin Liu ◽  
Chengcheng Xu
Keyword(s):  
Traffic Flow ◽  
Traffic Control ◽  
Flow Characteristics ◽  
Traffic Density ◽  
Minimization Method ◽  
Spatial Unit ◽  
Flow Parameters ◽  
Safety Knowledge ◽  
Traffic Operation ◽  
Crash Modeling

Macrolevel crash modeling has been extensively applied to investigate the safety effects of demographic, socioeconomic, and land use factors, in order to add safety knowledge into traffic planning and policy-making. In recent years, with the increasing attention to regional traffic management and control, the safety effects of macrolevel traffic flow parameters may also be of interest, in order to provide useful safety knowledge for regional traffic operation. In this paper, a new spatial unit was developed using a recursive half-cut partitioning procedure based on a normalized cut (NC) minimization method and traffic density homogeneity. Two Bayesian lognormal models with different conditional autoregressive (CAR) priors were applied to examine the safety effects of traffic flow characteristics at the NC level. It was found that safety effects of traffic flow exist at such macrolevel, indicating the necessity of considering safety for regional traffic control and management. Furthermore, traffic flow effects were also examined for another two spatial units: Traffic Analysis Zone (TAZ) and Census Tract (CT). It was found that ecological fallacy and atomic fallacy could exist without considering traffic flow parameters at those planning-based levels. In general, safety needs to be considered for regional traffic operation and the effects of traffic flow need to be considered for spatial crash modeling at various spatial levels.

scholarly journals Traffic Flow Analysis and Management

2021 ◽  
Author(s):  
Tsutomu Tsuboi
Keyword(s):  
Traffic Flow ◽  
Traffic Congestion ◽  
Flow Analysis ◽  
Traffic Monitoring ◽  
Diving Behavior ◽  
Low Carbon ◽  
Gujarat State ◽  
Traffic Condition ◽  
Transportation Demand ◽  
The City

This research is about joint government founded program between Japan and India or Science and Technology Research Partnership for Sustainable development (SATREPS). The purpose of this research is to establish Low Carbon Transportation in developing countries and we choose one of major city in India, where it is Ahmedabad city of Gujarat state—west cost of India. In order to approach the target, we need to understand the current situation of traffic condition in the city. The current traffic condition in India is some chaotic because of their different driving behavior compared with the advanced countries. It is becoming the chaotic traffic condition in India by not only diving behavior during investigation of this research. The main reason of the traffic congestion comes from the unbalance between growing transportation demand and its insufficient infrastructure preparation. In this chapter, it introduces the current traffic condition based on four years monitoring of the traffic by the traffic monitoring cameras and comparison by the traffic flow theory at first. Then it introduces the new traffic analysis method especially for its traffic congestion analysis and its parameters. After the traffic congestion analysis, it summarizes conclusion and our next step from the experience.

scholarly journals Pemetaan Store Design dan Visual Merchandising Distro di Kota Bandung

2014 ◽  
Vol 1 (2) ◽  
pp. 264-279
Author(s):  
Jurry Hatammimi ◽  
Brhiyawan RH Cendekia
Keyword(s):  
Traffic Flow ◽  
Industry Growth ◽  
Perceptual Maps ◽  
Shopping Experience ◽  
Store Design ◽  
The Difference ◽  
Visual Merchandising ◽  
Impulse Purchase ◽  
Consumer Assessment ◽  
The City

One of the evidence of creative industry growth in fashion sector in the city of Bandung is the establishment of many distro or distribution outlet. There are 4 distro that has the highest sales level, i.e Ouval Research, Unkl347, Dloops, and Black Id. The four distro were trying to show differentiation in terms of store design and visual merchandising to make up the store uniqueness and influencing buying behavior. Beside there is no research about the mapping of distro in the city of Bandung yet, especially about their store design and visual merchandising, this study will also show the difference of the four distro even though they have some similarities. This study aims to determine the perceptual map of store design and visual merchandising which applied by each distro. By using Multi Dimensional Scaling, there are consumer assessment in making perceptual maps include shopping convenience, easy to find goods, shopping experience, signage, entrance, cash wraps, promotional aisle, windows, fitting room, traffic flow, alignment rack with the theme, the attractiveness of presentation techniques, and impulse purchase. The research shows Ouval Research superior in largely indicators namely shopping convenience, easy to find goods, shopping experience, signage, entrance, promotional aisle, windows, fitting room, the attractiveness of presentation techniques, and impulse purchase. Unkl347 win in two indicators namely cash wraps and alignment rack with the theme. Dloops only win in the traffic flow indicator. Black Id ranks fourth at all indicators. Keywords: Perceptual Map, Store Design, Visual Merchandising, Distribution Outlet

scholarly journals Data-driven profiling of traffic flow with varying road conditions

2019 ◽  
pp. 149-157 ◽  
Author(s):  
O K Golovnin
Keyword(s):  
Traffic Flow ◽  
Road Traffic ◽  
Flow Characteristics ◽  
Weather Conditions ◽  
Flow Speed ◽  
Data Driven ◽  
The Road ◽  
Data Driven Approach ◽  
Traffic Flow Characteristics ◽  
The City

The article describes the road, institutional and weather conditions that affect the traffic flow. I proposed a method for traffic flow profiling using a data-driven approach. The method operates with macroscopic traffic flow characteristics and detailed data of road conditions. The article presents the results of traffic flow speed and intensity profiling taking into account weather conditions. The study used road traffic and conditions data for the city of Aarhus, Denmark. The results showed that the method is effective for traffic flow forecasting due to varying road conditions.

scholarly journals Capacity Estimation of Multilane Highways under Heterogeneous Traffic Conditions using Micro-Simulation Technique

2020 ◽  
Vol 12 (01) ◽  
pp. 20-25
Author(s):  
Tanumoy Ghosh ◽  
Sudip Kumar Roy ◽  
Subhamay Gangopadhyay
Keyword(s):  
Simulation Model ◽  
Traffic Flow ◽  
Flow Characteristics ◽  
Simulation Models ◽  
Heterogeneous Traffic ◽  
Traffic Condition ◽  
Traffic Conditions ◽  
Geometric Conditions ◽  
Micro Simulation ◽  
Traffic Flow Characteristics

The behavior of a driver of any vehicle is important in estimating heterogeneous traffic conditions with no strict lane discipline. In the present study, a micro-simulation model is used to analyze the mixed traffic condition with different drivers’ behavior parameters. The field data collected on traffic flow characteristics of multilane highways are used in the calibration and validation of the simulation model. Out of the ten coefficient of correlation (CC) parameters in the simulation model, five are used in the present study to make a model of simulation for heterogeneous traffic; the other five parameters are not considered for testing their influence on simulated capacity values as they represent very typical behavior of a driver, either in car-following, or in free-flow conditions. Two separate simulation models are made by changing the CC (CC0, CC1, CC2, CC7, and CC8) parameters, each for a four-lane divided and a six-lane divided highway as the geometric conditions of the roads and the traffic flow is different for both the cases. These models are then applied on two other sections of a four-lane divided and a six-lane divided highway to validate the parameters of the model developed earlier for other sections.

Evaluation Analysis and Optimization Design of Urban Road Traffic Condition Based on VISSIM

2011 ◽  
Vol 97-98 ◽  
pp. 531-534
Author(s):  
Xin Qiu ◽  
An Xia Zheng ◽  
Ying Zhu ◽  
Bin Xu
Keyword(s):  
Traffic Flow ◽  
Optimization Design ◽  
Road Traffic ◽  
Flow Characteristics ◽  
Simulation Software ◽  
Traffic Condition ◽  
Urban Road ◽  
The Road ◽  
Road Congestion

Based on the survey of the traffic flow characteristics in the intersection, combined with the traffic flow basic principle and the existing research results at home and abroad, the road congestion condition is evaluated by determining the microcosmic evaluation index coefficient by VISSIM microcosmic simulation software. Then, the reasonable measures are put forward to improve urban road congestion condition. The analysis shows that the residents’ trip efficiency is improved and the quality of the urban road traffic condition is ameliorated.

scholarly journals Real-Time Crash Prediction Model for Application to Crash Prevention in Freeway Traffic

2003 ◽  
Vol 1840 (1) ◽  
pp. 67-77 ◽  
Author(s):  
Chris Lee ◽  
Bruce Hellinga ◽  
Frank Saccomanno
Keyword(s):  
Prediction Model ◽  
Real Time ◽  
Traffic Flow ◽  
Flow Characteristics ◽  
Previous Model ◽  
Traffic Condition ◽  
Freeway Traffic ◽  
Crash Prediction ◽  
Crash Prediction Model ◽  
Time Basis

The likelihood of a crash or crash potential is significantly affected by the short-term turbulence of traffic flow. For this reason, crash potential must be estimated on a real-time basis by monitoring the current traffic condition. In this regard, a probabilistic real-time crash prediction model relating crash potential to various traffic flow characteristics that lead to crash occurrence, or “crash precursors,” was developed. In the development of the previous model, however, several assumptions were made that had not been clearly verified from either theoretical or empirical perspectives. Therefore, the objectives of the present study were to ( a) suggest the rational methods by which the crash precursors included in the model can be determined on the basis of experimental results and ( b) test the performance of the modified crash prediction model. The study found that crash precursors can be determined in an objective manner, eliminating a characteristic of the previous model, in which the model results were dependent on analysts’ subjective categorization of crash precursors.

Study on Vehicle’s Arrival Rule and Relation between Traffic Flow Parameters on Snowy Pavement

2012 ◽  
Vol 446-449 ◽  
pp. 2528-2531
Author(s):  
Li Xin Wu ◽  
Guo Zhu Cheng
Keyword(s):  
Traffic Flow ◽  
Flow Characteristics ◽  
Traffic Volume ◽  
Flow Parameters ◽  
Traffic Flow Characteristics ◽  
Binominal Distribution

There are great difference in traffic flow characteristics between snowy pavement and non-snowy pavement. Ten road sections were investigated and the data of traffic volume, headway, speed and density on snowy and non-snowy pavement were collected. Vehicle’s arrival rules were compared and reasonable distribution was given. The relation between traffic volume and speed, density and traffic volume were compared between snowy pavement and non-snowy pavement. It indicated that negative binominal distribution is more fit to vehicle’s arrival frequency on snowy pavement. Speed decreases for the same traffic volume and traffic volume decreases for the same density on snowy pavement.

scholarly journals Research on Speeds at Roundabouts for the Needs of Sustainable Traffic Management

2021 ◽  
Vol 13 (1) ◽  
pp. 399
Author(s):  
Slavko Davidović ◽  
Vuk Bogdanović ◽  
Nemanja Garunović ◽  
Zoran Papić ◽  
Dragan Pamučar
Keyword(s):  
Traffic Flow ◽  
Traffic Management ◽  
Video Recording ◽  
Simulation Models ◽  
Street Network ◽  
Traffic Conditions ◽  
Geometrical Characteristics ◽  
Flow Parameters ◽  
Sustainable Implementation ◽  
Banja Luka

Knowledge of the characteristics of speed at roundabouts is very important in design procedures, simulation models, and determining the influence of these roundabouts on traffic conditions in a street network. Sustainable management in the street network means the influence of all its parts on traffic conditions and travel time. In order to reliably determine roundabouts parameters in the procedures of planning and the choice of sustainable method of traffic management, it is very important to know the values of the traffic flow parameters, particularly the speeds at the entry and exit leg, as well as in the circulatory zone. This article analyses the speed characteristics in traffic flow at urban roundabouts with different geometrical characteristics in the city of Banja Luka. The applied method for traffic data collecting in this research was the method of video recording processing, which excludes any influence on driver behavior. Furthermore, statistical analysis was conducted, which established the correlation between the achieved speeds and geometrical characteristics of the intersection. Due to roundabout characteristics, the research was focused on the access, that is, the entry leg, the segment of the circulatory zone and the exit leg. The research results showed there is a significant dependence between geometrical characteristics of certain elements of the roundabout on speeds. In the further course of the research, it was proved that the variation of speeds at the segments of roundabouts significantly affects the size of time losses and emission of pollutants, i.e., parameters based on which it is possible to objectively assess the possibility of sustainable implementation of the planned solution of roundabouts of similar geometry within the street network in cities similar to Banja Luka.

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