How to Improve the Capture of Urban Goods Movement Data?

Freight Generation and Freight Trip Generation Models

“…Moreover, retail establishments were found to have significant spatial autocorrelation. For an overview of FTG models developed in Europe see Taniguchi & Thompson (2002) and Patier & Routhier (2008). These models are generally based on zonal aggregates or data from surveys conducted at different geographic locations.…”

Lisbon’s Establishment-based Freight Survey: revealing retail establishments’ characteristics, goods ordering and delivery processes

“…Various publications list indicators that can be used in the context of post-survey analysis [1,8,12,20]. Based on the literature, a set of indicators was defined during the survey development process, targeting postsurvey analysis.…”

“…These major surveys requested establishments to fill a log of the deliveries/collections for a period of, respectively, 1 day or 1 week [9,12]. This enabled the researchers to know, for example, the precise arrival and departure time of vehicles as well as vehicle type and product quantities delivered.…”

“…The response rate varied according to surveying method: Albeit being more expensive and time consuming, the mixed approach on the Calgary/Edmonton EBFS is the most complete, including an introductory e-mail, a follow-up telephone call, a formal recruitment letter/fax and a final telephone call [9]. The EBFS used by the FRETURB model started with two different approaches: sending a questionnaire to establishments and Computer Assisted Telephone Interviews [12]. Eventually, the Computer Assisted Telephone Interviews were replaced by a phone call and a postal questionnaire.…”

“…Collecting information on seasonal changes (weekly or monthly) is recommended. This is important due to the difficulty of carrying out these surveys in a periodic way, not only due to its high costs, but also to the lack of involvement by stakeholders and funding authorities [12].…”