Yalcin Alver

Yalcin Alver
Ege University · Department of Civil Engineering

PhD

About

30
Publications
2,670
Reads
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253
Citations
Additional affiliations
July 2019 - January 2021
University of Central Florida
Position
  • Professor
September 2015 - July 2019
Ege University
Position
  • Professor (Associate)
January 2009 - October 2015
Ege University
Position
  • Professor (Assistant)
Education
September 2003 - September 2006
Kumamoto University
Field of study
  • Civil and Environmental Engineering

Publications

Publications (30)
Article
This study proposes a bi-level optimization model for the transit frequency setting problem in bi-modal networks. The objective of the upper-level problem is to obtain a solution set of bus line frequencies that provide the minimum total travel cost of the car and bus users. Differential Evolution (DE) algorithm is employed in the upper-level model...
Article
Gap acceptance, the fundamental part of pedestrian crossing behavior, represents a pedestrian's assessment of how safe an existing 7 gap in traffic flow is to cross the path. This assessment is an essential factor affecting pedestrian safety. However, the complex decision 8 problem of "how pedestrians assess the available gap as safe?" is still amb...
Article
Full-text available
Ülkemizde taşıt trafiğine oranla yaya trafiğine daha az önem verilmektedir. Bu durumdan kaynaklanan sorunlar arttıkça, yaya davranışlarını anlamaya yönelik çalışmalara olan ilgi de artmaya başlamıştır. Bu bağlamda, makalede lise çağındaki öğrencilerin ışıksız yaya geçitlerinde kabul edilebilir aralık kabulü davranışları incelenmiştir. Çalışma bir ö...
Article
Full-text available
Over the last few decades, rapidly growing cities in terms of population and land use have led to many transportation-based problems such as longer travel times, traffic congestion, traffic crashes, and air and noise pollution. Increasing the modal share of transit systems appears to be one of the most effective methods to solve transportation-base...
Article
Pedestrians confront risky situations at midblock sections due to the unyielding behavior of drivers. Thus, pedestrians have to wait for an appropriate gap to cross. This research investigates pedestrians' gap acceptance and crossing speed for midblock crossings by image processing methods in Izmir, Turkey. A total of 498 pedestrians have been trac...
Article
Full-text available
Public transportation vehicles, with their confined spaces and limited ventilation, are considered among the primary factors in the spread of COVID-19. As a measure to slow the spread of the virus during the pandemic, governments have applied passenger capacity restrictions to ensure physical distancing. On the other hand, the increase in the risk...
Article
Full-text available
In this study, an optimization model for road maintenance scheduling is proposed. The proposed model determines a maintenance schedule for a given set of links in an urban road network, that minimizes the total travel time during the maintenance period under a set of assumptions and a particular crew number constraint. It is assumed that all lanes...
Conference Paper
Full-text available
From the beginning of the 20 th century, developments in science and technology and the increase in population have brought rapid and uncontrolled urbanization. An automobile and city relation comes at the beginning of transportation problems. Parking problems are the least considered transportation problems. In this study, it is aimed to shed ligh...
Article
Most of the studies related to pedestrian behavior focus on signalized intersections while a few focus on overpasses. In this study pedestrians’ behaviors at overpass locations are investigated. For this purpose, two overpass locations were selected and pedestrians either using the overpass or crossing illegally were recorded by video cameras and 2...
Article
Pedestrians are the vulnerable part of the road users worldwide. A significant number of pedestrian fatalities occur in road traffic accidents each year. Hence, to minimize the pedestrian-vehicle accidents it is important to optimize the signal timings according to pedestrians’ crossing speeds and delays at signalized intersections and to understan...
Article
Full-text available
At four signalized intersections in Izmir, Turkey 342 questionnaire surveys were conducted. Data of 208 pedestrians were evaluated since the other participants could not be matched with the images. The main focus is on crossing during the red light. The average crossing speed and delays at sidewalks and at median were computed as well. During obser...
Conference Paper
Full-text available
During the development of urban transport in Turkey, pedestrians have been disregarded, and regulations for motorized vehicles have been given importance. In recent years, many authors have done several studies about conditions, it is complicated to find an adequate gap on highways. In-blocks. Hence, pedestrians have to choose small gaps crossing t...
Article
Purpose of designing crosswalks is to allow pedestrians to cross the roads safely avoiding conflicts between pedestrians and motorized vehicles. However, pedestrians do not always comply with the crossing rules, whether it is timing (signalization) and/or location (crossing facility). An observation survey of illegal crossings was conducted at six...
Article
Full-text available
The aim of designing overpasses is to provide safe road crossings for pedestrians by helping them to avoid conflicts with motor vehicles. However, the number of pedestrians who do not use overpasses to cross the road is very high. An observational survey of illegal road crossings was conducted at four overpass locations in Izmir, Turkey to determin...
Article
Full-text available
Studies based on socio-economic data shows that, young drivers have more tendencies to traffic rule violations and play significant role on traffic accidents caused by sensation seeking and lack of experience. For this reasons Turkey, which is a country with large youth bulge, must be subjected to studies on young driver behaviors. Main objective o...
Article
Young drivers' high traffic violation involvement rate and significant contribution to traffic crashes compared to older drivers creates the need for detailed analyses of factors affecting young drivers' behaviors. This study is based on survey data collected from 2,057 18-29 year old young adults. Data were collected via face-to-face questionnaire...
Article
Full-text available
Chemical accidents cause great danger for people working in the chemical facilities and residents living close to these facilities where in general evacuation is required in case of an accident. The most efficient way to create evacuation plans is to simulate the transportation network. In this paper, evacuation simulations are carried out for Alia...
Conference Paper
A simulation for, present urban transportation and three simulations for gulf crossing scenarios for Izmir are made using MATSim-T, an open source, multi-agent, dynamic transportation simulation software. Traffic volume results from the simulation for present raffic are compared to count station results to verify the accuracy of the simulation resu...
Article
Full-text available
Transportation-disadvantaged groups have been defined in previous studies as those who are low income earners, are family dependent, have limited access to private motor vehicles and public transport services, and are obliged to spend relatively more time and money on their trips. Additionally the disabled, young, and elderly are commonly considere...
Article
Corrosion of Reinforcement (rebar) is nondestructively estimated by the half-cell potential measurement. As is the case with other nondestructive testings (NDT), understanding of the underlying principles should be clarified in order to obtain meaningful results. Therefore, the measurement of potentials in concrete is analytically investigated. The...
Article
Full-text available
This study investigates the effects of Transit Information Systems (TIS). TIS are wide range of systems that provide travelers information about travel options such as; travel times, delays and/or incidents. In this study, the important transit information types and their service levels are investigated in Izmir City, Turkey. The study focused on t...
Article
Full-text available
Traffic has become a big problem in Kumamoto (Japan) because of the large proportion of trucks in traffic. In order to convert ordinary road traffic to expressway, two social experiments were carried out to identify the effects of toll discounts on expressway usage. Before the experiments a survey was conducted among freight and production companie...
Article
This dissertation investigates the effects of information on transportation with two different case studies in two different countries. Results of the both case studies proved that information has a significant effect for the effective usage of current transportation network and systems.

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