The relevance of the study is determined by fact that today at test site Northern Railway, client-oriented priorities are being actively implemented and measures taken to attract new customers network, which will increase share highly profitable cargo loading volumes in general, as well volume operations stations. An attempt was made propose a change technology throughput on Solombalka – Karpog...

We study a facility location problem motivated by requirements pertaining to the distribution of charging stations for electric vehicles: Place a minimum number of battery charging stations at a subset of nodes of a network, so that battery-powered electric vehicles will be able to move between destinations using “t-spanning” routes, of lengths within a factor t > 1 of the length of a shortest ...

The location of mobile users served by cellular networks is considered. The chosen approach assumes that location is estimated through angular triangulation with three base stations (BSs). New estimates are proposed, which are described by closed-form expressions, and are alternatives to the maximum likelihood estimate. It is shown that the accuracy of the estimate coinciding with incircle cent...

This study aims to develop a novel methodology to prioritize the construction of new railway infrastructures for privatization. The private sector can cooperate to solve the capacity problems of railway networks, by the construction of new infrastructure. The purpose of this study is to answer the basic question that whether the capacity problems of the railway networks can be solved simply by ...

One of the characteristics of public transport is the need for transfers. During transfers, travellers are pedestrian wayfinders and have to find their way from the place of arrival to the place of departure of another means of transport. Wayfinding in public transport takes place in two types of spaces: network space and scene space. Network space includes the transport network. Scene space co...

The purpose of this paper is to determine where to locate fire-station facilities. The decision of where to locate depends upon a set of tangible and intangible criteria that are unique to a given problem. Thus, the traditional models that incorporate only travel times or travel distances are no longer appropriate. This paper presents a multiple criteria modeling approach, via integer goal prog...

2. Periodic flushing.?Do this by fire-hose pipes connected to the hydrants by a hydrantconnector. Dry the surface thoroughly with squeezers on the platforms and swabs in the waiting rooms, etc. 3. Collection of paper rubbish, fruit peels and skins.?-Do this in small waste-bins fixed at regular intervals' along the platform pillars. Banana skins lying on the platforms result nearly daily into pa...

Subway systems span most large cities, and railway networks most countries in the world. These networks are fundamental in the development of countries and their cities, and it is therefore crucial to understand their formation and evolution. However, if the topological properties of these networks are fairly well understood, how they relate to population and socio-economical properties remains...