Journal
COMPUTERS ENVIRONMENT AND URBAN SYSTEMS
Volume 70, Issue -, Pages 24-34Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compenvurbsys.2018.01.011
Keywords
Travel diaries; Destinations; Purpose and travel mode inferences; Travel diary collection system; Open source; System design and architecture
Categories
Funding
- Travikverket (Swedish Transport Administration) [TRV 2014/10422]
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The increased interest in the automation of travel diary collection, together with the ease of access to new artificial intelligence methods led scientists to explore the prerequisites to the automatic generation of travel diaries. One of the most promising methods for this automation relies on collecting GPS traces of multiple users over a period of time, followed by asking the users to annotate their collected data by specifying the base entities for a travel diary, i.e., trips and triplegs. This led scientist on one of two paths: either develop an in-house solution for data collection and annotation, which is usually an undocumented prototype implementation limited to few users, or contract an external provider for the development, which results in additional costs. This paper provides a third path: an open-source highly modular system for the collection and annotation of travel diaries of multiple users, named MEILI. The paper discusses the architecture of MEILI with an emphasis on the data model, which allows scientists to implement and evaluate their methods of choice for the detection of the following entities: trip start/end, trip destination, trip purpose, tripleg start/end, and tripleg mode. Furthermore, the open source nature of MEILI allows scientists to modify the MEILI solution in compliance with their legal and ethical specifications. MEILI was successfully trialed in multiple case studies in Stockholm and Gothenburg, Sweden between 2014 and 2017.
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