scholarly journals Re-designing of the bottleneck on Suryanata Street Samarinda City East Kalimantan

2021 ◽  
Vol 879 (1) ◽  
pp. 012032
Author(s):  
E P Raharjo ◽  
A M Rahayu ◽  
V O Hartini
Keyword(s):  
Landscape Design ◽  
Traffic Volume ◽  
The Other ◽  
Design Parameters ◽  
Track Width ◽  
The Road ◽  
East Kalimantan ◽  
Infrastructure Performance ◽  
Result Analysis ◽  
The Relationship

Abstract Some indicators of traffic problems like congestion, pollution and accident become the benchmark to evaluate the infrastructure performance. One kind of problem that often happened are the Bottleneck problems. In this kind of condition, the capacity of one side of the road is lower than before condition. On the other hand, in the process of landscape design of bottleneck deciding only by the availability of the space and those kinds of condition are not getting research by some specialist. The purpose of this research is to analyze the design parameter to enhance the capacity so case we can decreasing the number of congestion in a significant way. This research has taken place in Suryanata Street, Samarinda City. This research uses the model of Greenshield Linear, Greenberg Logarithmic, and Exponential Underwood to state the relationship between the performance of Traffic, Volume, Speed, and Density so we can decide the best model to analyze the shock wave that is using to design the parameter that effecting the design of bottleneck road area. Meanwhile, the pollution that can identify it consist of: CO (in the part of Per Million / PMM), NOX (calculate in Cubic meter / M3) and level of smoke (calculate in Cubic Meter / M3) with using the model of Hobbs (1979). Re-designing will be implemented to get the optimal performance infrastructure in the research location, and evaluate those kinds of terms. The result of the research got three design parameters in the Bottleneck area. There are track width, length of the road, and traffic volume. From the result analysis, the researcher is doing the Re-designing in the bottleneck area of the research location by using the parameter performance of congestion, specifically on delayed and pollution, like CO, NOX and level of smoke. Based on the re-designing, we can be decreasing the delay in the amount of 29.31% decreasing the number of NOX by 25.03% on CO we can be decreasing in the amount of 14.88% and also decreasing the level of smoke by 11.94%.

scholarly journals Relationship between Cycling Infrastructure and Transportation Cycling in a Small Urban Area

2021 ◽  
Vol 1 (1) ◽  
pp. 99-112
Author(s):  
Richard Larouche ◽  
Nimesh Patel ◽  
Jennifer L. Copeland
Keyword(s):  
Generalized Linear Models ◽  
Qualitative Data ◽  
Linear Models ◽  
The Other ◽  
Small City ◽  
The Road ◽  
The Past ◽  
Low Prevalence ◽  
The Relationship

The role of infrastructure in encouraging transportation cycling in smaller cities with a low prevalence of cycling remains unclear. To investigate the relationship between the presence of infrastructure and transportation cycling in a small city (Lethbridge, AB, Canada), we interviewed 246 adults along a recently-constructed bicycle boulevard and two comparison streets with no recent changes in cycling infrastructure. One comparison street had a separate multi-use path and the other had no cycling infrastructure. Questions addressed time spent cycling in the past week and 2 years prior and potential socio-demographic and psychosocial correlates of cycling, including safety concerns. Finally, we asked participants what could be done to make cycling safer and more attractive. We examined predictors of cycling using gender-stratified generalized linear models. Women interviewed along the street with a separate path reported cycling more than women on the other streets. A more favorable attitude towards cycling and greater habit strength were associated with more cycling in both men and women. Qualitative data revealed generally positive views about the bicycle boulevard, a need for education about sharing the road and for better cycling infrastructure in general. Our results suggest that, even in smaller cities, cycling infrastructure may encourage cycling, especially among women.

The Study of Tire Pattern Noise by Using Wavelet Transform

2011 ◽  
Vol 105-107 ◽  
pp. 267-270 ◽  
Author(s):  
Sung Wook Hwang ◽  
Jin Hyuk Han ◽  
Ki Duck Sung ◽  
Sang Kwon Lee
Keyword(s):  
Fourier Transform ◽  
Wavelet Transform ◽  
The Other ◽  
Road Noise ◽  
Signal Process ◽  
The Road ◽  
Pattern Noise ◽  
On The Road ◽  
Non Stationary Signal ◽  
The Relationship

Tire noise is classified by pattern noise and road noise in a vehicle. Especially pattern noise has impulsive characteristics since it is generated by impacting of tire’s block on the road. Therefore, a special signal process is needed other than traditional Fourier Transform, because the characteristic of signal is varying with time. On the other hand, the pattern noise is a kind of non-stationary signal and is related to the impulsive train of pitch sequence of a block. In this paper, Wavelet Transform is applied to verify the impulse signal caused by impact of block and groove and to verify the relationship between the pattern noise and the train of pitch sequence.

Relationship Between Volume-to-Capacity Ratios and Accident Rates

1997 ◽  
Vol 1581 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Min Zhou ◽  
Virginia P. Sisiopiku
Keyword(s):  
Traffic Volume ◽  
The Other ◽  
Explanatory Factors ◽  
Traffic Conflict ◽  
Single Vehicle ◽  
Driver Inattention ◽  
Detroit Area ◽  
Accident Rates ◽  
The Relationship ◽  
Shaped Pattern

The general relationships between hourly accident rates and hourly traffic volume/capacity ( v/c) ratios were examined. A 26 km (16 mi) segment of Interstate I-94 in the Detroit area was selected as the study segment. The v/c ratios were calculated from average hourly traffic volume counts collected in 1993 and 1994 from three permanent count stations. Accident rates were derived from hourly distributed number of accidents in the same 2 years. The correlation between v/c values and accident rates follows a general U-shaped pattern. The study of all observed accidents combined indicates that accident rates are highest in the very low hourly v/c range, decrease rapidly with increasing v/c ratio, and then gradually increase as the v/c ratio continues to increase. U-shaped models also explain the relationship between v/c and accident rates for weekdays and weekend days, multivehicle, rear-end, and property-damage-only accidents. On the other hand, single-vehicle, fixed-object, and turnover accidents, and accidents involving injury and fatality follow a generally decreasing trend with increasing v/c ratio. Traffic conflict is viewed as a major contributing factor to high accident rates observed in the high v/c range, whereas night conditions and driver inattention were identified as explanatory factors for the occurrence of high accident rates in the low v/c ranges.

GLOSS to the judgment of the Supreme Court of 7 October 2016, II KK 157/16, Lex/el

2016 ◽  
Vol 294 ◽  
pp. 57-58
Author(s):  
Kazimierz J. Pawelec ◽  
Keyword(s):  
Supreme Court ◽  
General Principle ◽  
The Other ◽  
The Road ◽  
Other Hand ◽  
The Supreme Court ◽  
Timely Response ◽  
On The Road ◽  
The Relationship

The glossed decision of the Supreme Court is particularly important for the practice, inasmuch as it addresses two extremely important issues. On one hand, the decision expresses a general principle that the mere fact of a driver approaching a pedestrian crosswalk does not impose on him the obligation to perform excessive defensive maneuvers. On the other hand, it recognizes the need for a timely response, depending on the road conditions and situations. Thus, the decision addresses an important issue of the relationship between a driver and a pedestrian occurring at a crosswalk. Importantly, the provisions in force impose different obligations on drivers and pedestrians, the only common liability being a requirement for a particular caution. However, the above comments do not solve the conflict, because the existing legislation often imposes the obligation to do the impossible on a stronger traffic participant, i.e. the driver, which was recognized by the Supreme Court, which expressed an opinion diverging from the previous jurisprudence, all the more valuable, as it is sound and realistically approaching the issue in question.

Combinations of Contrastive Discourse Markers in English

2013 ◽  
Vol 5 (2) ◽  
pp. 318-340 ◽  
Author(s):  
Bruce Fraser
Keyword(s):  
Primary Care Physicians ◽  
Complete Solution ◽  
Discourse Markers ◽  
Written Language ◽  
The Other ◽  
The Road ◽  
Other Hand ◽  
Contrastive Discourse Markers ◽  
The Relationship

Discourse Markers are usually discussed as terms which signal the relationship between two contiguous sentences, S1—DM—S2 (“We started late. Yet, somehow, we arrived on time.”) In the present paper, I examine the class of English Contrastive Discourse Markers (CDMs) to determine what pairs of them occur acceptably in a sentence (“The health care system needs more primary care physicians. However, on the other hand, they are the doctors who are paid at the bottom of the scale.”), those which are unacceptable (“We could go to Jamaica for our vacation this year. On the other hand, nevertheless, we could stay home.”), and others for which the jury is out. Several tentative generalizations, including the role of spoken vs. written language are made but the complete solution is far down the road.

INCREASING THE EFFICIENCY OF THE BITUMEN-MINERAL MATERIALS COMPACTION PROCESS WITH A ROAD ROLLER

2021 ◽  
pp. 30-34
Author(s):  
E. A. Shishkin ◽  
A. A. Smolyakov
Keyword(s):  
Tensile Strength ◽  
Final Stage ◽  
Strain State ◽  
Design Parameters ◽  
Practical Implementation ◽  
Arc Length ◽  
Compaction Process ◽  
The Road ◽  
The Relationship ◽  
Compaction Performance

The final stage in the formation of the structure of the upper layer of the road surface is its compaction. Evaluation of compaction performance can be made by comparing the maximum drumside contact pressure with the tensile strength of the material to be compacted. As a result of considering the contact interaction of the roller with the layer of material, the relationship between the design parameters of the roller and the stress-strain state of the layer of the compacted material has been established. A method for evaluating the effectiveness of the use of a road roller is developed on the basis of measuring the arc length of the contact of its roller with the compacted material. For the practical implementation of the proposed methodology, a description of a device is given that allows monitoring the efficiency of the process of compaction of bitumen-mineral materials by a road roller.

scholarly journals Identifying Traffic Context Using Driving Stress: A Longitudinal Preliminary Case Study

Sensors ◽  
2019 ◽  
Vol 19 (9) ◽  
pp. 2152 ◽  
Author(s):  
Olga Vl. Bitkina ◽  
Jungyoon Kim ◽  
Jangwoon Park ◽  
Jaehyun Park ◽  
Hyun K. Kim
Keyword(s):  
Electrodermal Activity ◽  
Physiological Responses ◽  
The Other ◽  
Vehicle Speed ◽  
Statistical Features ◽  
Traffic Jam ◽  
The Road ◽  
Traffic Conditions ◽  
The Relationship

Many previous studies have identified that physiological responses of a driver are significantly associated with driving stress. However, research is limited to identifying the effects of traffic conditions (low vs. high traffic) and road types (highway vs. city) on driving stress. The objective of this study is to quantify the relationship between driving stress and traffic conditions, and driving stress and road types, respectively. In this study, electrodermal activity (EDA) signals for a male driver were collected in real road driving conditions for 60 min a day for 21 days. To classify the levels of driving stress (low vs. high), two separate models were developed by incorporating the statistical features of the EDA signals, one for traffic conditions and the other for road types. Both models were based on the application of EDA features with the logistic regression analysis. City driving turned out to be more stressful than highway driving. Traffic conditions, defined as traffic jam also significantly affected the stress level of the driver, when using the criteria of the vehicle speed of 40 km/h and standard deviation of the speed of 20 km/h. Relevance to industry: The classification results of the two models indicate that the traffic conditions and the road types are important features for driving stress and its related applications.

scholarly journals ANALISA FAKTOR PENYEBAB KERUSAKAN JALAN KELAS IIIA DI KABUPATEN LAMONGAN

Jurnal CIVILA ◽  
2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Muhammad Maftukin ◽  
Dwi Kartikasari
Keyword(s):  
Linear Regression ◽  
Human Factors ◽  
Research Method ◽  
Traffic Volume ◽  
Damage Score ◽  
The Road ◽  
Natural Factors ◽  
Preliminary Study ◽  
Short Time ◽  
The Relationship

Road  damage  sometimes  occurs  earlier than  the  period  of  service  caused  by  many  factors, among  others  are  human  factors  and  natural  factors.  With  the  growing  number  of  vehicles,it  is possible that the road would be damaged in a relatively short time. The purpose of this study is to know the effect of vehicles volume with the level of road damage and the relationship between the vehicles volume  with the level of road damage. In research method, there are several steps that must be done in order to get the results of research that includes doing a preliminary study to knowthe  characteristics  of  the  roads.  This  research  was  conducted  in  the  segment  of  Sekaran  Raya Road, Laren  Raya  Road,  Solokuro  Raya  Road,  and Blimbing  Paciran  Raya  Road  with  the  road damage score amounted to 80.2; 85.2; 86.2 and 80.2 respectively. The traffic volume at peak hours respectively  amounted  3,375.5  smp/hour,  3,320.2  smp/hour,  2,053.9  smp/hour  and  3,832.7 smp/hour.  It  is  known  from  the  result  of  the  traffic  volume  regression  that  the  road  and  time damage  score  is  y  =  0,002824883.x1  +  0,001498059.x2  +  77.00509615,  with  non-linear regression (R2) or the correlation between the x variables with y is = 0.617977513, that the  higher the traffic volume then the road damage will be even greater.

Model of a Traffic Circle

2013 ◽  
Vol 380-384 ◽  
pp. 1729-1733
Author(s):  
Yan Hong Zhang
Keyword(s):  
Control Model ◽  
The Other ◽  
Critical Space ◽  
Flow Volume ◽  
Left Turn ◽  
Space Model ◽  
The Road ◽  
Calculation Results ◽  
The One ◽  
The Relationship

In this paper, the relationship between the number of entrance and exit, and traffic flow volume. When the number of entrance and exit is equal to 4 or greater than 4, and when the weaving section length is taken into consideration, the relationship has been studied in detail. For a given traffic circle, the road conditions in, around and out of the circle have been determined. We treat these calculation results as the reference criteria and construct two models. The one is regular critical space model and the other is two-left-turn phase control model. Finally, taken by the example of Lianban Circle in Xiamen, China, the above models have been tested and their strengths and weaknesses have been analyzed.

The Relationship Between Suicidal Thinking and Dating Violence in a Sample of Adolescent Abortion Patients

Crisis ◽  
2011 ◽  
Vol 32 (5) ◽  
pp. 246-253 ◽  
Author(s):  
Gretchen E. Ely ◽  
William R. Nugent ◽  
Julie Cerel ◽  
Mholi Vimbba
Keyword(s):  
Unintended Pregnancy ◽  
Dating Violence ◽  
Young Women ◽  
Psychosocial Problems ◽  
The Other ◽  
Assessment Scale ◽  
Adolescent Dating Violence ◽  
Adolescent Relationships ◽  
Suicidal Thinking ◽  
The Relationship

Background: The relationship between suicidal thinking and adolescent dating violence has not been previously explored in a sample of adolescent abortion patients. Aims: This paper highlights a study where the relationship between dating violence and severity of suicidal thinking was examined in a sample of 120 young women ages 14–21 seeking to terminate an unintended pregnancy. Methods: The Multidimensional Adolescent Assessment Scale and the Conflict in Adolescent Relationships Scale was used to gather information about psychosocial problems and dating violence so that the relationship between the two problems could be examined, while controlling for the other psychosocial problems. Results: The results suggest that dating violence was related to severity of suicidal thinking, and that the magnitude of this relationship was moderated by the severity of problems with aggression. Conclusions: Specifically, as the severity of participant’s general problems with aggression increased, the magnitude of the relationship between dating violence and severity of suicidal thinking increased. Limitations of the study and implications for practice are discussed.

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