scholarly journals Collaborative distribution: strategies to generate efficiencies in urban distribution - Results of two pilot tests in the city of Bogotá

DYNA ◽  
2019 ◽  
Vol 86 (210) ◽  
pp. 42-51
Author(s):  
Diego Felipe Gutiérrez Rubiano ◽  
Jose Alejandro Hincapié Montes ◽  
Andrés Felipe León Villalba
Keyword(s):  
Collaborative Approach ◽  
Urban Freight ◽  
Freight Consolidation ◽  
Collaborative Logistics ◽  
Urban Distribution ◽  
Organizational Collaboration ◽  
Private Actors ◽  
The City ◽  
Pilot Tests

The urban freight distribution (UFD) processes represent externalities and inefficiencies to the community and the private actors involved. The enterprise collaborative approach has been implemented during the last decades as a solution to the referred problems. The aim of this study is to present the results of two pilot tests for collaborative logistics strategies carried out in Bogotá, Colombia. The tests were conducted to assess the collaborative logistics strategies’ efficacy in the reduction of congestion and contamination as well as their impact on companies’ efficiency. The initiatives evaluated were: (a) freight consolidation and (b) unload scheduling at retailers. In both cases, benefits were evidenced for the companies (-26% on average freight and + 83% on vehicles occupancy) as well as the community (-23.5% parked trucks on roads and -7% emissions). Nonetheless, the results do not possess statistical sufficiency. Further research could complement the factors and methodologies that facilitate organizational collaboration.

Urban Freight in Dublin City Center, Ireland

2005 ◽  
Vol 1906 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Clare Finnegan ◽  
Hugh Finlay ◽  
Margaret O'Mahony ◽  
Donal O'Sullivan
Keyword(s):  
Real Life ◽  
Distribution Centers ◽  
City Center ◽  
Urban Freight ◽  
Logistics Service ◽  
Last Mile ◽  
Logistics Service Provider ◽  
Delivery Platform ◽  
Urban Distribution ◽  
The City

Findings are presented from a study evaluating sustainable freight distribution in the city center of Dublin, Ireland, particularly focusing on urban distribution centers (UDCs) and managing the last mile of deliveries. A survey of city center organizations is described, and relevant delivery patterns (origin, destination, type of goods delivered) are compared with those from a previous feasibility analysis to determine UDC opportunities in Dublin. A real-life commercial example of a UDC is also described. Ireland's largest grocery distributor operates this UDC. The operational efficiencies and the wider benefits of the UDC are discussed. In addition, a commercial example of managing the last mile of deliveries through a city center delivery platform is detailed. The delivery platform is managed by a leading logistics service provider.

scholarly journals Selecting Freight Transportation Modes in Last-Mile Urban Distribution in Pamplona (Spain): An Option for Drone Delivery in Smart Cities

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4748
Author(s):  
Adrian Serrano-Hernandez ◽  
Aitor Ballano ◽  
Javier Faulin
Keyword(s):  
Public Transportation ◽  
Smart Cities ◽  
Freight Transportation ◽  
City Center ◽  
Analytic Hierarchy ◽  
Freight Logistics ◽  
Transportation Modes ◽  
Last Mile ◽  
Urban Distribution ◽  
The City

Urban distribution in medium-sized cities faces a major challenge, mainly when deliveries are difficult in the city center due to: an increase of e-commerce, weak public transportation system, and the promotion of urban sustainability plans. As a result, private cars, public transportation, and freight transportation compete for the same space. This paper analyses the current state for freight logistics in the city center of Pamplona (Spain) and proposes alternative transportation routes and transportation modes in the last-mile city center distribution according to different criteria evaluated by residents. An analytic hierarchy process (AHP) was developed. A number of alternatives have been assessed considering routes and transportation modes: the shortest route criterion and avoiding some city center area policies are combined with traditional van-based, bike, and aerial (drone) distribution protocols for delivering parcels and bar/restaurant supplies. These alternatives have been evaluated within a multicriteria framework in which economic, environmental, and social objectives are considered at the same time. The point in this multicriteria framework is that the criteria/alternative AHP weights and priorities have been set according to a survey deployed in the city of Pamplona (Navarre, Spain). The survey and AHP results show the preference for the use of drone or bike distribution in city center in order to reduce social and environmental issues.

scholarly journals Modeling the City Distribution System Reliability with Bayesian Networks to Identify Influence Factors

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Hao Zhang ◽  
Liyu Zhu ◽  
Shensi Xu
Keyword(s):  
Bayesian Networks ◽  
Bayesian Network ◽  
System Reliability ◽  
Distribution System ◽  
Complex Problem ◽  
Practical Significance ◽  
Correlation Degree ◽  
Urban Distribution ◽  
Distribution System Reliability ◽  
The City

Under the increasingly uncertain economic environment, the research on the reliability of urban distribution system has great practical significance for the integration of logistics and supply chain resources. This paper summarizes the factors that affect the city logistics distribution system. Starting from the research of factors that influence the reliability of city distribution system, further construction of city distribution system reliability influence model is built based on Bayesian networks. The complex problem is simplified by using the sub-Bayesian network, and an example is analyzed. In the calculation process, we combined the traditional Bayesian algorithm and the Expectation Maximization (EM) algorithm, which made the Bayesian model able to lay a more accurate foundation. The results show that the Bayesian network can accurately reflect the dynamic relationship among the factors affecting the reliability of urban distribution system. Moreover, by changing the prior probability of the node of the cause, the correlation degree between the variables that affect the successful distribution can be calculated. The results have significant practical significance on improving the quality of distribution, the level of distribution, and the efficiency of enterprises.

Using Pilot-Scale Investigations to Estimate the Remaining Geosmin and MIB Removal Capacity of Full-Scale GAC-Capped Drinking Water Filters

2006 ◽  
Vol 41 (3) ◽  
pp. 296-306 ◽  
Author(s):  
Souleymane Ndiongue ◽  
William B. Anderson ◽  
Abhay Tadwalkar ◽  
John Rudnickas ◽  
Margaret Lin ◽  
...  
Keyword(s):  
Drinking Water ◽  
Contact Time ◽  
Drinking Water Treatment ◽  
Pilot Scale ◽  
Full Scale ◽  
Removal Capacity ◽  
Treatment Facilities ◽  
The City ◽  
Water Filters ◽  
Pilot Tests

Abstract Pilot tests were conducted to investigate the removal of geosmin and 2-methylisoborneol (MIB) by new and semi-exhausted granular activated carbon (GAC) extracted from full-scale filters located in the City of Toronto's drinking water treatment facilities. Four pilot filters containing core-sampled GAC and new sand were fed with settled water from a full-scale plant and operated under conditions similar to those employed at full-scale. None of the pilot filters appeared to be capable of reducing geosmin and MIB concentrations to below the commonly cited threshold odour limits of 4 ng/L for geosmin and 9 ng/L for MIB at the influent levels tested. When operated at a 5-min empty bed contact time (EBCT) with geosmin influent concentrations in the range of about 70 to 110 ng/L, removals ranged from 10 to 38% in filters with 25 to 30 cm of used GAC. In the filter with 25 cm of new GAC, removal was 83%. When operated with a 7.5-min EBCT, the filter containing 95 cm of used bituminous GAC removed 78% of the geosmin present in the influent. For both geosmin and MIB, the effluent concentration and the amount removed increased as influent concentration increased, as was expected. In general, geosmin was better removed than MIB.

scholarly journals Transfer of Development Rights as Incentives for Regeneration of Illegal Settlements

2014 ◽  
Vol 11 ◽  
pp. 639-646 ◽  
Author(s):  
Nico Calavita ◽  
Francesco Calabrò ◽  
Lucia Della Spina
Keyword(s):  
Public And Private ◽  
The Public ◽  
Multiple Dimensions ◽  
Urban Rural ◽  
Development Rights ◽  
Urban Complex ◽  
Private Actors ◽  
The City ◽  
Original Approach

In Italy, southern cities are often characterized by widespread phenomena of illegal settlements, that have resulted among other things in a worsening of the quality of life of the urban-rural interface, and the decline of the considerable architectural interest of the entire city. .The goal of this paper is to propose an approach that would help requalify what is already built, to make the best of what has been realized by focusing on the quality and liveability of the city. This approach is based on a particular methodology based on the promotion of Urban Complex Programs (PUC), which provide a system of development rights resulting from the demolition of unfinished illegal settlements . The benefits of this approach are many, including improvements in efficiencies and safety, meeting demands of environmental protection and reducing consumption of energy, responding to the highest standards of protection and seismic risk prevention. They can be obtained only on one condition: that they are based on a system of collective and public conveniences in accordance with the principle of sustainability in multiple dimensions (environmental, cultural, technological, political, institutional, social and economic). But for this approach to be viable it needs also to be convenient for the private actors as well. With this paper we hope to provide first an original approach that can improve the conditions of cities burdened with the problems of illegal settlements that is both sustainable and convenient and, second, an instrument that can provide information for both the public and private sectors on the fairness of the procedure and their mutual interest in pursuing this approach.

THE ARGUMENTATION FOR THE IMPLEMENTATION OF URBAN CONSOLIDATION CENTER FOR THE OLD TOWN IN GDAŃSK AS AN INDICATION OF SUSTAINABLE URBAN FREIGHT LOGISTICS

2017 ◽  
Vol 69 (0) ◽  
pp. 63-71 ◽  
Author(s):  
Maria Matusiewicz
Keyword(s):  
Urban Space ◽  
Urban Areas ◽  
Infrastructure Development ◽  
Historical Buildings ◽  
Policy Makers ◽  
Factors Affecting ◽  
Urban Freight ◽  
Freight Logistics ◽  
The City ◽  
Urban Consolidation

Distribution of goods in urban areas is one of the most important factors affecting the operation of the region but the management of these services is often overlooked by transport policy makers in Polish cities. Historical buildings create additional difficulties because they make the infrastructure development impossible. It is estimated that in large European cities approximately 25% of CO2 emissions, 30% of nitrogen oxides and 50% of particulates from transport are emitted by trucks and vans. The doctoral thesis presents methods used to optimize distribution processes in cities with historic buildings in Europe and around the world. It also presents the results of a research carried out in the Old Town of Gdańsk and proposes a method to optimize distribution processes for the area, which was the main objective of the work. The hypothesis of the trial has been formulated as follows: locating Urban Consolidation Center not far away from the center of the City of Gdańsk would bring tangible benefits for the city and all users of the urban space. The study used a method of analysis and criticism of literature; detailed study of a particular case and the method of observation. According to the design model, the proposed solution will bring tangible benefits to all users of space – residents, businesses and city authorities. The results of tests carried out on account of this thesis were provided to the city authorities.

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