<title>Abstract</title> This paper estimates comprehensive operational performance measures for transport services. A network efficiency approach is used to analyze the production efficiency, service efficiency, and operational efficiency in a unified framework to reflect the transportation service...

<title>Abstract</title> This paper aims to modify the Stage 1 data envelopment analysis (DEA) of the three-stage DEA approach to allow for the fact that undesirable outputs like aircraft noise may not be freely disposable, and the efficiency measure of airport capacity use is modified to allow for an...

<title>A<sc>bstract</sc> </title> This study employs the directional graph distance function and the multiactivity data envelopment analysis (DEA) approach, which incorporates both desirable and undesirable outputs, in order to provide a more complete representation of the multimode bus production technology from which...