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Highway Capacity and Level of Service最新文献

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Influence of safety requirements on traffic flow 安全需求对交通流的影响
Highway Capacity and Level of Service Pub Date : 1900-01-01 DOI: 10.1201/9780203751916-36
S. Schnittger
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引用次数: 0
Bottle-necks on freeways: Traffic operational aspects of roadworks 高速公路的瓶颈:道路工程的交通运作方面
Highway Capacity and Level of Service Pub Date : 1900-01-01 DOI: 10.1201/9780203751916-30
J. Papendrecht, H. Schuurman
{"title":"Bottle-necks on freeways: Traffic operational aspects of roadworks","authors":"J. Papendrecht, H. Schuurman","doi":"10.1201/9780203751916-30","DOIUrl":"https://doi.org/10.1201/9780203751916-30","url":null,"abstract":"In the Netherlands roadworks are one of the causes of congestion on freeways. Due to the growth of the mobility and because of this the freeway volume, the expectation is that congestion will occur more often in the future. Compared to the capacity found at lanes of homogeneous freeway sections the capacity of lanes at freeway work zones is much lower. The aim of the research is to find an explanation for the capacity reduction caused by roadworks. Therefore the behaviour of the traffic flow at short term maintenance sites has been analysed in the influenced area of a two-lane roadway of a freeway of which one lane is closed. Detector-measurements have been carried out on two sites.","PeriodicalId":123979,"journal":{"name":"Highway Capacity and Level of Service","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123459766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Expected delay and stop calculation for discrete time adaptive traffic signal control 离散时间自适应交通信号控制的期望延迟和停车计算
Highway Capacity and Level of Service Pub Date : 1900-01-01 DOI: 10.1201/9780203751916-7
D. Brookes, M. Bell
{"title":"Expected delay and stop calculation for discrete time adaptive traffic signal control","authors":"D. Brookes, M. Bell","doi":"10.1201/9780203751916-7","DOIUrl":"https://doi.org/10.1201/9780203751916-7","url":null,"abstract":"The potential flexibility offered by discrete time adaptive traffic signal control systems employing a rolling horizon approach is becoming more widely appreciated. When the vehicle arrival process is random, for example when the intersection is isolated, there will be a significant random component to the performance index. For a given sequence of signal switching decisions over the rolling horizon, Markov chain techniques can be used to calculate expected performance, at the expense of computer storage and processing. This paper sets out three approximate approaches requiring substantially less storage and processing, and compares these with the Markov chain approach. It was found that an approach which propagates the first and second moments of the queues forward in time gave the best results. The paper concludes with a discussion of some of the practical aspects relating to detector location.","PeriodicalId":123979,"journal":{"name":"Highway Capacity and Level of Service","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128127820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Potential methods to forecast the actual highway capacity 预测公路实际通行能力的潜在方法
Highway Capacity and Level of Service Pub Date : 1900-01-01 DOI: 10.1201/9780203751916-47
D. Westland
{"title":"Potential methods to forecast the actual highway capacity","authors":"D. Westland","doi":"10.1201/9780203751916-47","DOIUrl":"https://doi.org/10.1201/9780203751916-47","url":null,"abstract":"Measurements at \"capacity situations\" on freeways in the Netherlands of the maximum flow per 15 minutes, called the actual capacity, showed coefficients of variations from 3-12% for normal conditions. These variations seem not to be due to chance only, therefore forecasting of the actual capacity is of vital importance for traffic management measures like route diversion and ramp metering. In the paper an overview of possible methods to forecast actual capacity is given, with special attention to methods based on the decomposition of the distribution of headways into followers and non-followers. The inverse of the mean of the headways of the followers, measured at flows below capacity, can be used for the actual capacity estimation. Microscopic analysis of traffic over a road length of 1200 m has been the validated reference, mentioned the Pendel Following Criterion (PFC), for the investigation of this type of capacity estimators. With herefrom derived simple capacity estimators, capacity profiles have been made at lane drops and entrance lanes.","PeriodicalId":123979,"journal":{"name":"Highway Capacity and Level of Service","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131783139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Freeway capacity: Definition and measurement issues 高速公路容量:定义和测量问题
Highway Capacity and Level of Service Pub Date : 1900-01-01 DOI: 10.1201/9780203751916-31
B. Persaud, V. Hurdle
{"title":"Freeway capacity: Definition and measurement issues","authors":"B. Persaud, V. Hurdle","doi":"10.1201/9780203751916-31","DOIUrl":"https://doi.org/10.1201/9780203751916-31","url":null,"abstract":"","PeriodicalId":123979,"journal":{"name":"Highway Capacity and Level of Service","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115907856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 19
Implementation of the Australian roundabout analysis method in SIDRA 澳大利亚迂回分析方法在SIDRA中的实现
Highway Capacity and Level of Service Pub Date : 1900-01-01 DOI: 10.1201/9780203751916-2
R. Akcelik, R. Troutbeck
{"title":"Implementation of the Australian roundabout analysis method in SIDRA","authors":"R. Akcelik, R. Troutbeck","doi":"10.1201/9780203751916-2","DOIUrl":"https://doi.org/10.1201/9780203751916-2","url":null,"abstract":"Progress towards the development of a comprehensive Australian method for the analysis of capacity and performance of roundabouts is reported. The new Australian roundabout design guide to be produced during 1991 will include a significant revision of the current capacity analysis method by the incorporation of the results of Australian research. This method allows for the effects of circulating flows, entry flows and roundabout geometry on gap acceptance parameters. The new Australian roundabout analysis method will be implemented in the SIDRA package which was originally developed for signalised intersection analysis. As a computerised method, SIDRA will provide some significant advantages in the implementation of the capacity and performance analysis method for roundabouts. These include an iterative method to calculate circulating flows with capacity limitation for oversaturated approaches, and techniques for estimating entry lane flows, shared lane capacities and time-dependent delays.","PeriodicalId":123979,"journal":{"name":"Highway Capacity and Level of Service","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128580269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 38
Effects of progression quality and traffic flow non-stationarity in delays models at signalized intersections 信号交叉口延迟模型中级数质量和交通流非平稳性的影响
Highway Capacity and Level of Service Pub Date : 1900-01-01 DOI: 10.1201/9780203751916-9
J. Chodur, M. Tracz
{"title":"Effects of progression quality and traffic flow non-stationarity in delays models at signalized intersections","authors":"J. Chodur, M. Tracz","doi":"10.1201/9780203751916-9","DOIUrl":"https://doi.org/10.1201/9780203751916-9","url":null,"abstract":"To allow for the effect of platooned vehicle arrivals on delays at signalized intersections, the 1985 Highway Capacity Manual (HCM-85) uses progression factors. Results of empirical validation studies of the HCM-85 delay model have shown that the modified model is more accurate and its calibration gave an expression similar to one presented in the NCHRP report. Based on results of simulation studies of the effects of non-stationary flow demands on traffic conditions, a modified form of Akcelik's delay expression is suggested.","PeriodicalId":123979,"journal":{"name":"Highway Capacity and Level of Service","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128840484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Congestion, flow and capacity 拥堵、流量和容量
Highway Capacity and Level of Service Pub Date : 1900-01-01 DOI: 10.1201/9780203751916-26
Guo-Qing Liu
{"title":"Congestion, flow and capacity","authors":"Guo-Qing Liu","doi":"10.1201/9780203751916-26","DOIUrl":"https://doi.org/10.1201/9780203751916-26","url":null,"abstract":"","PeriodicalId":123979,"journal":{"name":"Highway Capacity and Level of Service","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114508129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Traffic flow and capacity at work sites on freeways 高速公路工地的交通流量和通行能力
Highway Capacity and Level of Service Pub Date : 1900-01-01 DOI: 10.1201/9780203751916-33
W. Ressel
{"title":"Traffic flow and capacity at work sites on freeways","authors":"W. Ressel","doi":"10.1201/9780203751916-33","DOIUrl":"https://doi.org/10.1201/9780203751916-33","url":null,"abstract":"The traffic flow at work sites on freeways with regard to the capacity depends mainly on the method of handling traffic and the lane width. The following behaviour in the case of a permanent traffic congestion preceeding a work site can be defined by means of empirical time interval distributions. The Beta-distribution is appropriate as a mathematical model function. The capacity of a work site bottleneck results from the assumption of a binomial development as well as the functional relation between the traffic volume and the average gross time interval.","PeriodicalId":123979,"journal":{"name":"Highway Capacity and Level of Service","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134391932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Quality of service on the main road network in the Netherlands 荷兰主要道路网络的服务质量
Highway Capacity and Level of Service Pub Date : 1900-01-01 DOI: 10.1201/9780203751916-37
H. Stembord
{"title":"Quality of service on the main road network in the Netherlands","authors":"H. Stembord","doi":"10.1201/9780203751916-37","DOIUrl":"https://doi.org/10.1201/9780203751916-37","url":null,"abstract":"Transport policy for the long term in the Netherlands is currently laid down in a Structure Plan. In the first part of this paper attention is paid to the Structure Plan which was recently issued. This Structure Plan covers the period until 2010. Major aims of this plan are: improving environmental amenity, managing and reducing mobility and improving accessibility. In order to meet with these aims a great number of policies and target scenarios were drafted which must be settled in the next twenty years. These policies and targets are briefly explained. The second part of the paper examines more thoroughly one of the criteria relating to improved accessibility, namely the quality of service on the main road network. Until recently the quality of service was expressed as a level of service which was based upon the Highway Capacity Manual. In behalf of the present-day Structure Plan another indicator was set up, namely the percentage of the daily traffic that will meet with congestion on the main road network. A description is given of the cost-benefit analyses which have led to percentages of 2% for the so-called links with the hinterland and 5% for the other links within the main road network.","PeriodicalId":123979,"journal":{"name":"Highway Capacity and Level of Service","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115577014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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