Extended Four-Step Travel Demand Forecasting Model for Urban Planning

Abstract

Territorial accessibility as a tool for urban planning case: San José del Guaviare.This final master's thesis develops the territorial accessibility in the urban and peripheral areas of San José del Guaviare municipality, aiming to create a planning tool that works as a technical basis for making decisions regarding new road infrastructure projects and alternative modes of transport to private vehicles, such as pedestrian, cycling, and public transport. The existing transport network is created following the above approach. Its operating conditions are determined and the overall average accessibility of the current scenario is calculated. The current system coverage is then evaluated in terms of accessibility concerning the identification and spatial location of the municipality's primary activity nodes. Subsequently, four (4) intervention proposals to existing infrastructure are approached and the savings rate is calculated for each one.Finally, the pedestrian network is developed based on the existing road network structure, the design of the pilot cycle route network is proposed, and urban public transport routes are planned. Thus, making the final evaluation of the overall average accessibility of each mode concerning the nodes of primary activity.

Demand Forecasting DBA Algorithm for Reducing Packet Delay with Efficient Bandwidth Allocation in XG-PON

“…In order to evaluate the proposed algorithm under various stress conditions, we create simulation scenarios consisting of a varying number of ONUs -viz. 32,64,96,128,160,192, and 224 connected with a single OLT as a star topology. Obviously, the 32 ONU scenario will offer less stress while the 224 ONU scenario will offer maximum stress to the DBA algorithm.…”

“…With the incorporation of circular buffers, we present the potential of this novel DF-DBA approach that can achieve better results in terms of throughput, Packet delivery ratio (PDR) and End-to-End Delay. Demand forecasting models have also been in use for different fields, such as business inventory management system [27,28], water distribution networks [29], neural networks [30,31], tourist system [32], and patient data management system [33]. However, to the best of our knowledge, this method is used for the first time in XG-PON networks to provide an easy way for ONU to receive the bandwidth grants.…”