This paper addresses two shortcomings of the data-driven stochastic fundamental diagram for freeway traffic. The first shortcoming is related to least-squares methods which have been widely used in establishing traffic flow diagrams. We argue that these are not suitable generate percentile-based diagrams, because results generated by represent weighted sample mean, rather than percentile. second widespread use independent modeling methodology a family Existing inadequate coordinate diagrams...

Abstract Construction and demolition waste disposal charging is a critical component in construction (CW) management. Over the past few decades of implementation around world, effectiveness decreasing negative environmental impact gradually being questioned. This paper identifies two intertwined issues that have not attracted sufficient attention actual practice. One consideration contractors’ behavior, which economically driven. Another influence transportation, also major stream pollution....

Efficiently solving the user equilibrium traffic assignment problem with elastic demand (UE-TAPED) for transportation networks is a critical studies. Most existing UE-TAPED algorithms are designed using sequential computing scheme, which cannot take advantage of advanced parallel power. Therefore, this study focuses on model decomposition and parallelization, proposing an origin-based formulation proving equivalent reformulation original problem. Furthermore, alternative direction method...

This paper presents a new methodology to identify optimal locations and capacity for rail-based Park-and-Ride (P&R) sites increase public transport mode share. P&R is usually taken as an important component of policies the sustainable development urban systems. However, previous studies reveal that arbitrarily determined may act reduce commuting. proposes location design sites, with aim enhancing usage. A Combined Mode Split Traffic Assignment (CMSTA) model proposed scheme. Taking CMSTA...

This paper investigates a covering time minimisation problem of the maritime rescue missions that arise in practical operations context Hong Kong waters. In this problem, fleet heterogeneous vessels is deployed at marine police bases to deal with emergencies. Once an emergency request received, should send sufficient arrive incident site as soon possible provide critical medical service injured or sick. A basic question what minimal could promise any site. The shorter water district can be...

This paper presents theoretical analysis of how career concerns and shareholder monitoring affect chief executive officer (CEO) agency costs. We investigate investment efficiency prior to CEO retirement based on a sample Chinese state-owned enterprises (SOEs) during the 1999–2007 period find that there is significant decline in retirement, relative other periods, this becomes less under stronger supervision. Our research furthers understanding significance SOE incentive mechanisms.

Environmental sustainability is a significant aspect in the sustainable development of modern urban cities, especially road transport system. As traffic demands increase, public requires more promotion to accommodate increasing travel while maintaining environmental quality. Public transport, however, less attractive vast suburb areas mainly due its longer distance and waiting time. Therefore, this paper proposes rail-based Park-and-Ride (RPR) scheme promote multimodal network. To remedy...

Modeling the relationship between vehicle speed and density on road is a fundamental problem in traffic flow theory. Recent research found that using least-squares (LS) method to calibrate single-regime speed-density models biased because of uneven distribution samples. This paper explains issue LS from statistical perspective: calibration caused by correlations/dependencies regression residuals. Based this explanation, we propose new for modeling covariance residuals via zero-mean Gaussian...

Traffic assignment is a fundamental tool to evaluate and analyse the travel behaviour of network users in transportation network. Although many extensions have been developed, principle user equilibrium (UE) still cornerstone for solving traffic problems. Applications UE large-scale networks largely limited due overwhelming computation burden. Therefore, with recent advances parallel computing, this paper proposes an efficient parallel-computing framework based on Map-Reduce solve problem....

This paper investigates a distance-based preferential fare scheme for park-and-ride (P&R) services in multimodal transport network. P&R is sustainable commuting approach large urban areas where the service coverage rate of conventional public modes (e.g., train and bus) poor/low. However, many cities are less attractive compared to auto other modes, especially facilities sited far away from city center. To address this issue, proposes which travelers who choose mode get discount. The...

Abstract Using A-share listed companies in China from 1999 to 2010, this paper investigates the influence of industry competition on earnings persistence perspective real options theory. Different traditional industrial economics theory, analyses based theory show that may be nonlinear and relationship between two vary with firm’s operating efficiency or profitability. Our empirical results for low profitability, intense can encourage management exercise abandonment more effectively, thereby...

An improved parallel block coordinate descent (iPBCD) algorithm for solving the user equilibrium traffic assignment problem is proposed. The iPBCD developed based on (PBCD). hybrid flow update policy investigated to enhance robustness and performance of PBCD algorithm. Two order rules, namely a cyclic rule greedy are compared indices. Then, size optimized using sensitivity analysis test. Finally, five index-grouping rules tested comparative purposes. Numerical experiments indicate that have...

Purpose This paper aims to examine the effect of dividend regulation on cost stickiness (i.e. asymmetric change in firm expense between sales increase and decrease) explore underlying mechanism. Design/methodology/approach Based quasi-natural experiment Guideline for Dividend Policy Listed Companies issued by Shanghai Stock Exchange (SSE) 2013, authors employ a difference-in-difference model investigate impact stickiness. Findings The find that treatment group firms has decreased...