Yard hostlers are tractors (switchers) used to move containers at ports and storage facilities. While many speed-time driving cycles for assessing emissions and performance from heavy-duty vehicles exist, a driving cycle representative of yard hostler activity at Port of Long Beach, CA was not available. Activity data were collected from in-use yard hostlers as they performed ship loading/unloading, rail loading/unloading and other yard routines, primarily moving containers on trailers or carts. The activity data were then used to develop four speed-time driving cycles with durations of 1200 seconds, representing light and heavy ship activities and light and heavy load rail activities. These cycles were constructed using actual speed-time data collected during activity logging and the cycles created were statistically comparable to each subset of activity data.
Quantification of Yard Hostler Activity and the Development of a Representative Yard Hostler Cycle
Sae Technical Papers
SAE 2009 Powertrains Fuels and Lubricants Meeting ; 2009
02.11.2009
Aufsatz (Konferenz)
Englisch
Europäisches Patentamt | 2025
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