Paper Info
Title
A Hierarchical Task Model For Dispatching In Computer-Assisted Demand-Responsive Paratransit Operation
Abstract
This research was conducted to organize and model a comprehensive set of paratransit dispatching task activity in a computer-assisted control room. The dispatching task involves continuous monitoring and interaction with archived and real-time data using a typical dispatch software. Extensive field observations and video recordings of dispatch operations were conducted. Then, a skeleton decision model of the dispatchers activities was generated and later validated with an expert dispatcher. Hierarchical Task Analysis (HTA) was used to further refine this model into a comprehensive HTA decision hierarchy (decision tree). To capture the complexity of multi-dispatcher operation, we extended this model to a simultaneous operation of two collaborative dispatchers in the same control room-a van dispatcher and a lead dispatcher. The results of this analysis showed that HTA could be used to model such an activity with a high degree of Fidelity. The sequential decision tree format of the HTA also shows promise as a training tool for entry-level dispatch personnel and as a tool for human-computer interaction evaluation in dispatch software design.
Year
DOI
Venue
2001
10.1080/10248070108903693
ITS JOURNAL
Keywords
DocType
Volume
paratransit service, computer automation, dispatch operation, task analysis, decision tree, dispatch training, human-computer interaction
Journal
6
Issue
ISSN
Citations 
3
1024-8072
3
PageRank 
References 
Authors
0.53
1
2
Name
Order
Citations
PageRank
Mansour Rahimi1133.10
Maged Dessouky247939.53