منابع مشابه
Does Supporting Passenger Railways Reduce Road Traffic Externalities?
Many governments subsidize regional rail service as an alternative to road traffic. This paper assesses whether increases in service frequency reduce road traffic externalities. We exploit differences in service frequency growth by procurement mode following a railway reform in Germany to address endogeneity of service growth. Increases in service frequency reduce the number of severe road traf...
متن کاملthe effect of traffic density on the accident externality from driving the case study of tehran
در این پژوهش به بررسی اثر افزایش ترافیک بر روی تعداد تصادفات پرداخته شده است. به این منظور 30 تقاطع در شهر تهران بطور تصادفی انتخاب گردید و تعداد تصادفات ماهیانه در این تقاطعات در طول سالهای 89-90 از سازمان کنترل ترافیک شهر تهران استخراج گردید و با استفاده از مدل داده های تابلویی و نرم افزار eviews مدل خطی و درجه دوم تخمین زده شد و در نهایت این نتیجه حاصل شد که تقاطعات پر ترافیک تر تعداد تصادفا...
15 صفحه اولComputerised Passenger Reservation System of the Indian Railways
1.1 Highlights Railways did not set out clear milestones or targets for the switch over from BSNL channels to their own OFC network. Even where the zonal railways had chalked out action plans, these were not adhered to and the progress of switch over was very slow. Railways continued to largely rely on hired BSNL channels with recurring expenditure towards hiring of the channels even though the...
متن کاملRescheduling in passenger railways: the rolling stock rebalancing problem
This paper addresses the Rolling Stock Rebalancing Problem (RSRP) which arises within a passenger railway operator when the rolling stock has to be rescheduled due to changing circumstances. RSRP is relevant both in the short-term planning stage and in the real-time operations. RSRP has as input a timetable and a rolling stock circulation where the allocation of the rolling stock among the stat...
متن کاملEvaluating the Efficiency of Iranian Regional Railways
Railway transportation plays an important role in the economic development of Iran. National Iranian Railways includes fifteen regional railways which operate independently, but under the supervision of National Iranian Railways Company. Evaluating the efficiency of regional railways is an important issue in Iran and is one of the bases for budget and resource allocation for further developmen...
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ژورنال
عنوان ژورنال: The Economic Journal
سال: 1902
ISSN: 0013-0133
DOI: 10.2307/2956903