Vehicular ad hoc networks (VANETs) are special case of mobile ad hoc networks (MANETs) with predictable mobility constraints. In VANETs, non real-time applications are appreciated as compared to real time applications because of very frequent network partitions caused by high node mobility. The focus of this paper is on Delay tolerant networks (DTNs). DTNs are special type of networks which fol...

In this paper we focus on a class of polling systems encountered while modeling a class of ferry based wireless local area networks (FWLAN). A ferry facilitates local communication between the nodes (or users) as well as the communication between the nodes and a base station (BS) that serves as the gateway with the external world. The ferry, while walking in a predetermined cyclic path, communi...

In delay tolerant WSNs mobile ferries can be used for collecting data from sensor nodes, especially in large-scale networks. Unlike data collection via multi-hop forwarding among the nodes, ferries travel across the sensing field and collect data from sensors. The advantage of using a ferry-based approach is that, it eliminates the need for multi-hop forwarding of data, and as a result energy c...

The state of Washington operates the largest passenger vessel ferry system in the United States. In part due to the introduction of high-speed ferries, the state of Washington established an independent blue-ribbon panel to assess the adequacy of requirements for passenger and crew safety aboard the Washington state ferries. On July 9, 1998, the Blue Ribbon Panel on Washington State Ferry Safet...

A Mobile Ad Hoc Network (MANET) is a collection of mobile nodes that can communicate with each other using Multihop wireless links without using any fixed infrastructure and centralized controller. Communication links are susceptible to frequent failures due to intervening objects, which can cause intermittent connectivity. Due to Intermittent connectivity, there is no end-to-end path exists be...

Trade within Africa is at an all-time low, with a lack of optimal intermodal transportation network and high cost business serving as deterrent to trade. This research studies Intra-African ECOWAS using hierarchical spatial aggregation process identify 27 nodes. Distance-based weighted centrality measures employed TOPSIS model ranked node Economic Community West African States (ECOWAS) transpor...

Europe is an extremely ferry-intensive area, with two main markets – the Northern and Baltic, Mediterranean; while EU ferries account for 35% of world fleet. This research presents E-ferry, first pure electric ferry medium range routes likely largest battery pack ever installed in vessel, evaluates its economic performance compared to electric-diesel a diesel vessel. Three E-ferry schemes are u...

IZINDABA 318 A top-level think tank on KwaZulu-Natal's perplexing 'outbreak' of XDR-TB has recommended urgent inpatient point prevalence surveys and better screening of HIV-positive TB-symptomatic patients in order to better assess its country-wide extent. Speaking after provincial health, World Health Association (WHO) and Medical Research Council (MRC) officials met in Pietermaritzburg at the...

Autonomous transportation is an increasingly popular concept and gradually becoming a reality. This transformation also changes the way people travel. For example, autonomous ferry emerging alternative for residents living in coastal areas. To evaluate safety of ferry, thorough review necessary. paper makes initial attempt by developing model performing risk assessment collisions between ship w...