- Tytuł:
- Geometric factors influencing entry capacity of roundabouts under heterogeneous traffic conditions
- Autorzy:
-
Zacharia, Arun Baby
Madhavan, Harikrishna
Anjaneyulu, M. V. L. R. - Powiązania:
- https://bibliotekanauki.pl/articles/224085.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
roundabout
entry capacity
geometry
heterogeneous traffic
traffic conditions
regression
rondo
najazd
geometria ronda
ruch heterogeniczny
warunki drogowe - Opis:
- Roundabout entry capacity is influenced by geometric features of the roundabout, traffic flow characteristics, vehicle are checked. In comparison with the existing empirical models such as the LR942 regression model and German empirical model, the proposed regression model produced better estimates and much lower RMSE values. Approach width is found to have the highest impact on entry capacity. The entry capacity is found to be negatively influenced by entry angle. Circulating flow is considered in terms of per metre width against the usual convention. This modification incorporates the effect of circulatory roadway width also into consideration. The circulatory roadway width has a diverse effect on entry capacity at different levels of circulating flow. Modification of inscribed circle diameter and circulatory roadway width is suggested as a potential solution for improving entry capacity. Sensitivity analysis is carried out to quantify the effect of variation of entry angle, circulatory roadway width, inscribed circle diameter and approach width on entry capacity based on the non-linear model. The sensitivity plots can be used to make subtle geometric modifications to improve capacity at congested roundabouts.
- Źródło:
-
Archives of Transport; 2019, 49, 1; 87-101
0866-9546
2300-8830 - Pojawia się w:
- Archives of Transport
- Dostawca treści:
- Biblioteka Nauki
Artykuł