Many studies have tried to use the surrogate safety measures (SSM) estimated from the microscopic traffic simulations. However, it is difficult to adopt these developed SSM to reflect real-world traffic conditions when the developed network in the simulation is not calibrated and validated accordingly. This paper proposed a method to develop the pattern-based surrogate safety measure (PSSM) using individual

The study aims to predict the location of taxi users, based on an algorithm that was built using a map learning method, which is one of the techniques of deep learning. As the location data of taxi riders showed sequential characteristics over time, learning was performed using a recurrent neural network, which is suitable for predicting dynamic changes over time. The main data used in the analysis

This paper proposes a method to predict highway travel times using a spatio-temporal algorithm based on a gated recurrent unit (GRU). The spatio-temporal algorithm predicts the travel times considering both spatial and temporal characteristics of travel time. It could reduce the time-lag problems between the experienced and predicted travel times on travel routes. The results of the spatio-temporal

Public bike-sharing (PBS) systems have expanded to major cities around the world in efforts to mitigate air pollution, traffic congestion and traffic accidents. Users can pickup and drop-off bicycles at any station, and thus inventory imbalances can occur. To improve system efficiency, system operators should establish appropriate repositioning strategies based on accurate predictions of demand for

Investigating trip purposes of transit passengers is crucial in assessing current urban transportation systems and prioritising investments in the public transportation infrastructure. Smart card data provide day-to-day information on passengers’ boardings and alightings, but the lack of information on trip purposes leads to restrictions on the use of these data. This paper focuses on estimating trip

The purpose of this paper is to examine the influence of different roadway surfaces’ roughness on cyclists’ velocity choices. Could surface roughness be efficiently used for designing velocity choices according to needs in different locations? First, a survey to identify environmental conditions’ impact on cyclist velocity choices is employed. The main part analyses the speeds of 3750 cyclists, measured

In general, buses do not always operate in accordance with the set schedule in the modern-day transit system, mainly due to the randomness of passenger demand and running times. The failure to run on schedule deteriorates the quality of transit services. This paper proposes a real-time hybrid control strategy that is designed to shorten the passenger's waiting time caused by large schedule deviations

This paper discusses the influence that the location of a bus stop has on traffic flow and passenger satisfaction when they are near to a signalised intersection. Traffic flow is modelled to measure traffic delay and passenger usage under a variety of traffic flows and signal cycle times. It concludes that maximum benefits can be obtained if the bus stops are located both prior to and immediately following

Water and wastewater pipelines form intrinsic constituents of the complex water infrastructure system. Given the serious consequences of failure of these pipes, risk assessment needs to be made an integral part of a comprehensive infrastructure asset management plan. This risk assessment comprises of two parts – likelihood and consequence of failure. As past literature has focused primarily on the

The quality of concrete can be primarily judged by its compressive strength. Numerous methods of non-destructive testing (NDT) have been developed to approximate the compressive strength of in situ concrete. Schmidt's rebound hammer and ultrasonic pulse velocity methods are frequently used. In the study reported in this paper, both methods were applied and correlated with destructive testing of concrete

Governance mechanisms of public–private partnership (PPP) projects can alleviate opportunism behaviours and indirectly reduce transaction costs from the perspective of transaction cost economics. This paper analyses 40 PPP projects in 14 provinces and municipalities across China using the grounded theory and finds that the key attributes for contractual governance are risk sharing, procurement methods

The paper explores building collapses at the cross-cutting edges of urban sustainability and the socio-economic and political–cultural influences of vulnerability for the phenomenon – in departure from the traditional conceptualisation of the phenomenon as an ‘engineering’ problem. It confers insights into the influences of vulnerability for building collapse in the urban context and makes a case for

Delimiting urban areas is crucial for planning and managing cities. In Portugal, urban limits are exclusively decided at the municipal level according to the strategic vision of each municipality. Consequently, urban delimitation is a significantly changeable process. This paper presents a methodology to fill this gap aiming at delimiting urban areas based on objective and quantitative spatial data

Urbanisation modifies the natural hydrological cycle and aggravates floods. If the limits imposed by the natural environment are respected in the urban planning process, it is expected that the city resulting from this process will be able to coexist with floods, suffering minor damages. In this context, this work uses the concept of low-impact development (LID) to ‘go back in time’, with the aid of

Buried utilities (e.g. gas, water, electricity, drainage), many installed decades ago, are vital urban support systems. Their locations are often not well documented, yet accurate location greatly helps replacement, rehabilitation and maintenance of existing services and is crucial for installation of new utilities: it minimises utility strikes / third party damage and the huge associated costs of

Waste mud processing is an urgent problem in in situ construction with no existing method of address. Identifying a highly effective, low-energy and environmentally friendly treatment method would hold great significance. This paper introduces a fast, economic and environmentally friendly construction technology centred on the in situ solidification process. After solidification, bearing capacity and

Pedestrian facilities: geometric design for safety and mobility – second edition

Construction is one of the most hazardous and complex industries worldwide, which may result in the most fatal accidents and occupational illnesses. It is also regarded as a major industry not only in Gulf Cooperation Council (GCC) countries but also worldwide and it is rapidly growing. This study reports an assessment of different body parameters, including physiological factors and body pain of construction

Differential settlement of footings of reinforced-concrete buildings is expected to have a considerable effect on design forces in various structural components depending on the characteristics of the soil. The differential settlement combined with the soil–structure interaction (SSI) effect during earthquakes may be a significant factor in deciding the structural response especially for structures

One of the most common problems in construction projects is delay. Delays lead to loss of time and an increase in cost, which causes great damage to firms and the economies of countries. In previous studies, many researchers have attempted to identify the factors causing the delay by carrying out questionnaire surveys and interviews. However, there are very few studies that have compared the data obtained

The leachate released from dumpsites can cause severe contamination of land and water. By studying seasonal variations of leachate characteristics generated from three active landfill sites of Delhi (India), it was found that seasonal variations can significantly affect the composition of leachate. Various parameters, such as conductivity, total dissolved solids (TDS), biochemical oxygen demand (BOD)

In recent years, a large number of metro systems have been built in Chinese cities, this is especially true in Shanghai. As an emerging information management technology, building information modelling (BIM) has been introduced in the metro projects. However, very few data models of the completed metro projects conform to a uniform BIM standard. In fact, the existing deliverable models of different

Resilient and sustainable municipal organisations develop long-term capital investment plans to balance capital investment needs with organisational financial capacity in the most optimum way to en...

This briefing paper presents the modular integrated construction (MiC) approach drawing on the literature, the theories of modularisation and production and pioneering practices. MiC is a game-changing approach introduced in Hong Kong focusing on high-density, high-rise building construction, to transform fragmented site-based construction into integrated value-driven production with the opportunity

Is there such a thing as an urban direction to infrastructure innovation in today's rapidly expanding cities? City growth has driven evolution of urban infrastructure through a combination of technological, political and commercial innovations to produce today's top-down, centralised models; however, these now stand in the way of the innovation necessary to accommodate the city growth anticipated in

Infrastructure reconstruction and development facilitates the transition of post-conflict economies to socio-economic stability and financial normalcy. The current system of measuring success is output-based and not a reliable indicator of outcome. Furthermore, standardised output metrics are easily and often abused. However, the outcome of any infrastructure project is by definition retrospective

The disposal of plastic waste is a great dilemma in present times due to its non-biodegradable nature and the scarcity and unsustainability of landfills. Studies reveal that it can be successfully utilised in bituminous concrete (BC) mixes in flexible pavements. There are two methods available, namely, dry method (DM) and wet method (WM) that incorporate plastic wastes in the BC mixes. In this study

This paper presents the project management of a transnational workshop in urban engineering, held as education and training for students from Brazil (UFRJ – Universidade Federal do Rio de Janeiro, Rio de Janeiro Federal University, Universidade Estadual de Maringá, Maringá State University) and France (UTC – Université de Technologie de Compiègne, Compiègne University of Technology, Sorbonne University)

This research study was conducted to assess the potential of a fuzzy logic approach for flood hazard (FH) modelling in five suburban basins in Hamadan city, Iran. The soil conservation service (SCS) method in the Hydrologic engineering center-hydrologic modelling system (HEC-HMS) model was used to assess the accuracy of this method. The results revealed that the two employed methods had almost the

In this study, the fast and safe predictability of the California bearing ratio (CBR) from some important soil parameters that can be obtained easily and cheaply was investigated. Within the scope ...

A probabilistic risk assessment is presented for earthquakes in the northwest of the Mexican state of Baja California. Six seismic sources are considered for determining the seismic hazard, and vul...

Various studies have found that accessibility conditions, especially for non-motorised trips, can be more effective if solutions involving the built environment are considered. These studies reveal...

Currently, although there are bikeway networks in many cities in Taiwan, they do not effectively meet expectations. Parts of the existing bikeway network need to be reconstructed or changed to make...

In recent years, the construction industry has been faced with several issues such as mass migration across national borders, increasingly complex environments with respect to safety/environmentall...

A significant portion of the municipal income in Turkey comes from property tax. However, the process of registering property and associating it with owners presents significant problems in the cal...

Extreme heat stress has a deep impact on physiological reactions, which results in occupational injuries and deaths. In this paper, an attempt is made to understand the impact of heat stress on con...

A city's points of interest reflect the character and identity of urban environments, setting the scene for various functions and activities. Built form, active travel behaviour and residential pre...

This study is based on a use of Geographic Information System (GIS), Remote Sensing (RS) and Multiple-Criteria Decision Analysis (MCDA) as tools and methods well suited for the selection of the app...

The planned development of urban areas depends on zoning applications. Although zoning practices are performed using different techniques, the parceling operations that shape the future view of the...

Trip mode choice, one of the stages of the four-step travel process, is influenced by individual and family attributes, such as economic, social and cultural characteristics. The purpose of this st...

Headway fluctuation and bus bunching are common in transit operations, while holding control is a proven strategy for the reduction of bus bunching. Recently, benefited from the advances in technol...

To what extent do blind or partially sighted pedestrians perceive barriers or facilitators when moving through a shared space (SS)? The aim of this study was to understand in real-time, the percept...

The majority of roads in developing countries especially in sub-Saharan Africa remain unpaved. To optimise their social impact, rural roads need to be complemented with convenient and affordable tr...

Bournemouth Borough Council in the UK implemented two shared-space schemes under the Local Sustainable Transport Fund programme at Horseshoe Common and at Boscombe, completed in 2014 and 2015, resp...

Road lane reduction with the addition of roadway countermeasures (also known as a ‘road diet’) is a transportation planning treatment to achieve systemic traffic improvements. Although lane reducti...

With the acceleration of urbanisation in China, land shortage has become a severe problem in metropolises. As the medium and shallow underground space in central urban areas has been developed to a...

This paper introduces the concept of pedestrian or walking friendliness (WF), and presents a methodology for obtaining maps thereof. WF is a quality of walking indicator, defined for any given orig...

Syrians fleeing from the civil war in their county to Turkey have started to live mostly in the southern provinces which are close to the border like Gaziantep, Kilis, Mardin, Şanliurfa, Adana, Osm...

Earthquake fault zoning and geological survey have attracted considerable attention in Turkey, particularly, after the major earthquake on 17 August 1999. Detection of faults, processing the result...

Building information modelling (BIM) has shown itself as a leading factor in increasing the production and efficiency in the construction sector in many countries. The construction sector in Turkey...

Urban footpath quality and pedestrian level of service is a popular subject for modelling and simulation in transport engineering. This paper reports an investigation into the capacity of footpaths...

Pavements are one of the largest assets of a city and their functional condition (ride quality) is priority for their clients. In jointed plain concrete pavements (JPCPs), the presence of joint fau...

This paper presents studies aimed at reducing seismic risk in northern Pakistan. The unreinforced masonry buildings, in parts of Gilgit-Baltistan and Khyber-Pakhtunkhwa provinces, are classified as...

Two linear parks in the cities of Buenos Aires (Argentina) and Palmira (Colombia) were analysed in terms of their use, meaning and benefit, to highlight their difference and similarities to those i...

Climate change is a big challenge that may affect water and sanitation services. The authors studied a strategy to adapt current infrastructure to adverse effects due to climate change, such as mor...

If you've been stuck in a traffic jam caused by roadworks this summer, you will understand the Local Government Association's (LGA) urgency in asking the government to grant councils the power to introduce a daily rate or lane rental for digging up certain busy roads. According to the LGA, the country currently has a £12 billion backlog of repairs, and one in five roads is classed as being in poor

The aim of this paper is to present a modification of the trip distribution model and compare it with the traditional gravitational model, as well as with other models based on intervening opportun...

Low-impact development (LID) is an important infrastructure method for improving urban drainage through stormwater best management practices. The parameterisation sensitivities for LID techniques a...

Underutilisation of public parks in the residential areas of South African cities is a challenge. Although accessibility, environmental and social factors are argued to be some of the challenges for the utilisation of parks, the challenges of accessibility – particularly in the residential areas of cities are least explored. This study examined the most important accessibility factors that influence

Rapid-transit systems, commonly referred to as metros or subways, offer a cost-effective and sustainable solution to tackle modern-day problems of urban congestion. However, the planning, design, construction, operation and maintenance of rapid-transit networks pose monumental challenges to civic authorities. Building information modelling (BIM) offers numerous opportunities to leverage the benefits