منابع مشابه
Appropriate protection for wheelchair riders on public transit buses.
Securement of wheelchairs and occupant restraint for wheelchair riders on buses is one of the most difficult problems facing transit providers. The primary findings of this literature review show that (1) very little information has been published regarding transit bus safety and crash environment; (2) the focus of most reported wheelchair incidents involved noncollision events, in which inappr...
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A key issue for systems that rely on community contributed, updated, and verified information is motivating and sustain ing participation. We investigate this issue in the context of civic, geographically-situated information systems. We fo cus on StopInfo, a system that provides detailed information about transit stops, primarily oriented toward blind and low vision riders. StopInfo augments...
متن کاملUniversity Traveler Value of Potential Real-Time Transit Information
Intelligent transportation systems (ITS) have become common in public transit systems, particularly providing real-time transit information. For new implementations, it remains difficult to predict and quantify system and user benefits of technology implementation. Although previous studies have quantified the operational benefits of real-time transit traveler information systems, a gap in know...
متن کاملconditional copula-garch methods for value at risk of portfolio: the case of tehran stock exchange market
ارزش در معرض ریسک یکی از مهمترین معیارهای اندازه گیری ریسک در بنگاه های اقتصادی می باشد. برآورد دقیق ارزش در معرض ریسک موضوع بسیارمهمی می باشد و انحراف از آن می تواند موجب ورشکستگی و یا عدم تخصیص بهینه منابع یک بنگاه گردد. هدف اصلی این مطالعه بررسی کارایی روش copula-garch شرطی در برآورد ارزش در معرض ریسک پرتفویی متشکل از دو سهام می باشد و ارزش در معرض ریسک بدست آمده با روشهای سنتی برآورد ارزش د...
Investigation of large transit vehicle accidents and establishing appropriate protection for wheelchair riders.
Securing wheelchairs and restraining wheelchair riders on buses is difficult for many wheelchair riders and transit providers. This study examined injury-producing events aboard large transit buses in general in an attempt to better understand the potential risks and required protection for wheelchair users. The study found that few injuries and fatalities occur on large transit buses. Examinat...
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ژورنال
عنوان ژورنال: SSRN Electronic Journal
سال: 2004
ISSN: 1556-5068
DOI: 10.2139/ssrn.1736161