Abstract
The chapter for diverge, merge, and small weaving segments in the new German Highway Capacity Manual (HBS, edition 2015) is rewritten in accordance with forthcoming developments in the past 10 years. In this paper, an overview of the chapter in HBS 2015 is presented. Differences between the first edition 2001 and the new edition of the chapter in the German Highway Capacity Manual are indicated and discussed. In addition, the results of two cases which are not yet included in HBS 2015 are presented.
Introduction
The first edition of German Highway Capacity Manual (HBS) was published in 2001 (FGSV, 2001). Now, a new edition was published in 2015 (FGSV, 2015). For the new German Highway Capacity Manual, most major chapters were revised and some of them were totally rewritten.
The joint chapter for diverge, merge, and small weaving segments (not longer than 500m) is a new development in accordance with forthcoming research works in the past 10 years. An overview of the chapter in HBS 2015 is presented in this paper. Procedures dealing with performance analyses and Level of Service (LOS) of those segments are introduced both for freeways and rural highways. Differences between the former HBS 2001 and HBS 2015 are indicated and discussed.
5 Summary and Outlook
In the new German Highway Capacity Manual (HBS) (FGSV, 2015), the chapters for diverge, merge, and small weaving segments is rewritten in accordance with forthcoming developments in the past 10 years. In this paper, an overview of the chapters for diverge, merge, and small weaving segments on freeways and rural highways in HBS 2015 is presented. Procedures dealing with performance analyses and level of service (LOS) of those segments are introduced both for freeways and rural highways. Differences between the former version and the new version of the chapter in HBS are indicated and discussed. In addition, two additional cases for merge and diverge segments on 4 lanes carriageways which are not yet included in HBS 2015 are investigated according to available data. For the two new cases, calibrated parameters and monographs are provided for the further development of HBS.
