Interventno upravljanje prometom zahtijeva integraciju strategija koje obuhvaćaju napredno prikupljanje /širenjenje informacija o pogreškama, i učinkovit sustav emitiranja poruka. Približni "stalni" ...alternativni pravci koji kombiniraju inteligentne mjere transportnog sustava mogli bi objektivno igrati važnu ulogu u podržavanju kategorije ublažavanja posebnog zagušenja i upravljanja incidentima. Ovaj rad pokušava riješiti metodologiju davanja prioriteta takvim "stalnim" alternativnim pravcima preko glavnih generatora / atraktora prometa za strategije navođenja i preusmjeravanja prometa u odgovarajućoj lokalnoj mreži. Demonstrira se scenarij interventnog upravljanja i rada kako bi se razmotrili prikupljeni stvarni podaci o prometu, procjeni mjesta i trajanja incidenta, identifikaciji alternativnih pravaca i uzroku zagušenja integrirani sa ITS (Inteligentnim Transportnim Sustavima), koristeći mješovitu mrežu blizu gradskih zidina Xi'an Minga kao VISSIM primjera. Konačno, razmatraju se vrste vodećih znakova dijagramske rute s uzorcima primjene.
Transport network infrastructure including the use of Intelligent Transport Systems (ITS) is fundamental to the mobility of people and shipments. This study aims at understanding how different ITS ...measures may impact multiple traffic engineering goals with respect to a set of Key Performance Indicators (KPIs). The ordering of KPIs is determined by the preferences of the decision maker. A Multi-Criteria Decision Analysis framework is proposed for impact assessments of ITS measures. Data about KPIs is derived with the help of traffic data gathered from the Gothenburg Region. Comparing the contributions of ITS measures to different goals suggest that the management of flow and speed in a road network is crucial for improving capacity utilisation. The goal assessments are then projected onto different use-cases in terms of socio-economic impacts. The result indicates that corridor section traffic management, transport management (focusing on transit traffic) and urban gate-way will generate socio-economic effects, respectively, in a decreasing order. Urban gateway is particularly interesting because it is the least intrusive and less costly use-case.
The New Mobility Ratio Hope, Keith
Social forces,
12/1981, Letnik:
60, Številka:
2
Journal Article
Recenzirano
A new mobility ratio has been proposed as a way of dealing with the confounding between main and interaction terms which is inherent in the old mobility ratio. It is shown that the new ratio does not ...in fact succeed in this aim, that values of the ratio are highly dependent on the model fitted to account for interaction, and that criticisms of Blau and Duncan's conclusions about the mobility of American society, which derive from application of the new ratio, cannot be sustained. The old mobility ratio, unlike the new, always has a determinate value, and its alleged defects are formally equivalent to properties which are not usually regarded as defects in a multivariate analysis of discriminance.
Hope for the Mobility Ratio Hauser, Robert M.
Social forces,
12/1981, Letnik:
60, Številka:
2
Journal Article
Recenzirano
Macdonald's criticism of structural models of mobility is empty because it denies ideas or theories a place in model construction. Specifically, the equivalent models proposed by Macdonald do not ...meet the criterion of minimal asymmetry that was applied in the selection of models for British and American mobility tables. Under certain conditions, equivalent models meet the symmetry criterion, but these conditions do not apply to the examples discussed by Macdonald. Also, he exaggerates the usefulness of odds-ratios in formulating models for non-ordered data, and he proposes an empirical revision of the Featherman—Hauser model of mobility to first occupations that is less appealing than the original model. Hope's criticism of the new mobility ratio rests on an illogical comparison between the Featherman—Hauser model and various saturated models of the mobility table. Also, his commentary makes erroneous statements about the relationship between the Featherman—Hauser model and their criticisms of Blau and Duncan and about the relationship between that model and Goodman's quasi-independence models.
