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AbstractDue to demanding service levels in e‐commerce order fulfillment, modeling and analysis of integrated storage and order picking processes in warehouses deserve special attention. The upstream storage system can have a significant impact on the performance of the downstream order picking process. With a particular focus on multiline e‐commerce orders, we develop an analytical modeling framework for integrated analysis of upstream (shuttle‐based storage and retrieval system) and downstream (pick system) networks. To capture the consolidation delays in fulfilling multiline orders, the downstream pick system is modeled with a closed queuing network that includes synchronization nodes. The configuration of the synchronization station is adapted to model the variety of order profiles handled at the pick station. For the downstream closed queuing network, we propose a decomposition‐based solution methodology that results in good solution accuracy. The resulting semi‐open queuing network (SOQN) of the integrated system is analyzed using the matrix‐geometric method (MGM). To improve the accuracy of analytical estimates of the measures, we propose a hybrid simulation/analytical framework, where the performance measures of complex subnetworks are obtained from simulation. We also develop a detailed simulation model of the physical system for validating the analytical and hybrid estimates of the performance measures. The results from experiments indicate that the hybrid simulation/analytical approach reduces the error in the throughput time estimates to 3% from 18% obtained from the analytical model. Then, we investigate the effect of the upstream network configuration (such as the number of storage aisles) and the downstream network configuration (such as the mixed vs. dedicated picking, CONWIP control for orders, order batching) on the order throughput times. Our analysis provides a threshold on the maximum numbers of allowable orders (CONWIP control) and number of aisles beyond which the improvement in average throughput time of the integrated system is marginal. Numerical experiments with high‐order arrivals also highlight that mixed picking in the downstream network can result in significant throughput time reduction in comparison to dedicated picking.

As to impact of European level planning activities and initiatives on planning practice in the Member States of the European Union, an important issue is practical application of theoretical aspects of planning that includes results of discussions on basic conditions for elaboration of a high quality and effective integrated planning documents and concepts in accordance with theoretical conclusions. The significance of cities with regard to regional development is testified by political and strategic documents-the strategy "Europe 2020" (EC, 2010) and others. Attractiveness is now linked to economic growth to provide a broader framework for the analysis of the process during which cities will reach higher standards of their inhabitants' life quality, as well as the most favorable environment for attraction of investments and visitors. Therefore it is important to understand what creates the attractiveness of cities for residents, investors and visitors and the way it could become an element of policy and planning process to contribute to balanced regional development. The aim of the research is to explore the importance of elaboration of integrated development concepts to increase the city attractiveness and the way it could become an element of policy and planning process to contribute to balanced regional development. Three tasks have been set within the framework of the research: -to investigate the theoretical aspects of planning methodology and city attractiveness; -to identify the most important factors of city attractiveness for Rezekne city; -to set up the integrated regional development concepts' priorities of the Rezekne city to enhance its attractiveness.

"This book presents methods and case studies for researchers and policy makers searching for alternative solutions for problems in regional sustainable development, taking into account socio-economic and environmental dimensions in a system integrated approach" -- Provided by publisher