Applied Graph Theory to Real Smart City Logistic Problems

AbstractIn a recent project in the Region of North Jutland in Denmark, an empirical study of the mobile broadband conditions was carried out by installing measurement equipment on two cars driving around everywhere in the Region. This paper provides an overview of the system designed for carrying out the project, focusing on the solution for the logistics problem presenting well-defined challenges. We present a feasible solution for the non-trivial problem of planning routes, guaranteeing 100% coverage of the 19.000km of roads in the Region and having hard computational time constrains. The solution is a combination of applied graph theory and Geographic Information Systems (GIS), framed into a realistic context to be able to carry out the project. One of the future foreseen application fields of cellular networks is to provide efficient network connectivity to cyber physical systems for the required data transactions between the devices and data processing units. Hence, the results derived from similar measurement projects, among many others, is the evaluation of whether the broadband infrastructure is currently ready for the deployment of Smart City outdoor cyber physical systems and implicitly, which steps should be taken towards the deployment of these systems

Elaborating a city-logistic conception for the case of Budapest

The volume of environment and life quality damaging road goods transport grows continously in cities and in their surroundings all over Europe. The consequences, the more and more critical traffic and life conditions in urban regions make it unavoidable to develop and introduce new technics when planning and organising supply chains in cities. This paper aims to give an overview of a possible city-logistic development strategy and the latest results of its practical application for the case of the Hungarian capital, Budapest

ORTO EXPO, un progetto… modello

Per la Smart City che Milano intende essere, l’OrtoMercato dovrà diventare un elemento fondamentale: per tutti gli eventi di EXPO 2015 la city logistic assumerà un ruolo di primo piano sia per la gestione e distribuzione dei flussi (persone e merci), sia per minimizzare tutti quegli impatti che, in assenza di un Piano specifico, saranno decisamente rilevanti

Internal report cluster 1: Urban freight innovations and solutions for sustainable deliveries (3/4)

Technical report about sustainable urban freight solutions, part 3 of

Multi-echelon distribution systems in city logistics

In the last decades , the increasing quality of services requested by the cust omer, yields to the necessity of optimizing the whole distribution process. This goal may be achieved through a smart exploitation of existing resources other than a clever planning of the whole distribution process. For doing that, it is necessary to enha nce goods consolidation. One of the most efficient way to implement it is to adopt Multi - Echelon distribution systems which are very common in City Logistic context, in which they allow to keep large trucks from the city center, with strong environmental a dvantages . The aim of the paper is to review routing problems arising in City Logistics , in which multi - e chelon distribution systems are involved: the Two Echelon Location Routing Problem ( 2E - LRP) , the Two Echelon Vehicle Routing Problem (2E - VRP) and Truck and Trailer Routing Problem (TTRP), and to discuss literature on optimization methods, both exact and heuristic, developed to address these problems

Internal report cluster 1: Urban freight innovations and solutions for sustainable deliveries (1/4)

Technical report about sustainable urban freight solutions, part 1 of

Movement generation and trip distribution for freight demand modelling applied to city logistics

The quantification of the freight movements disaggregated by supply chain occurring in each traffic zone for the urban delivery of goods and that of the corresponding Origin - Destination trip tables is essential to evaluate the effects of any city logistic poli cy in terms of vehicle congestion and polluting emissions through the assignment of truck flows on the road network. In this paper we propose two innovative demand models: the first one for movement generation, the second one for trip distribution. The mov ement generation is addressed through an extension of the category index model, which takes into account the hierarchy in the classification system of the economic activities, thus avoiding aggregating the many existing classification codes into pre - specif ied groups. The trip distribution is addressed through an adaptation of the gravity model, which takes into account that deliveries are organized in tours. This approach has been successfully applied to the case of Emilia - Romagna Region in Italy, where an extensive campaign of surveys has permitted to calibrate both models for several towns and cities with various dimensions and vocations