RPAT's non-motorized vehicle model predicts the ownership and use of non-motorized vehicles (where non-motorized vehicles are bicycles, and also electric bicycles, Segways and similar vehicles that are small, light-weight and can travel at bicycle speeds or slightly higher than bicycle speeds).
The core concept of the model is that non-motorized vehicle usage will primarily be a substitute for short-distance single-occupant vehicle (SOV) travel. Therefore, the model estimates the proportion of the household vehicle travel that occurs in short-distance SOV tours. The model determines the maximum potential for household VMT to be diverted to non-motorized vehicles, which is then discounted based on the idea that only some of that travel will be appropriate for substitution for non-motorized travel because of issues such as weather conditions (e.g. winter weather) and the need to carry items (e.g., trips to grocery stores).
The Threshold variable defines the single-occupancy vehicle (SOV) tour mileage threshold used in the SOV travel proportion model; i.e. it is the upper limit for tour lengths that will be potentially switched to non-motorized travel.
The PropSuitable variable describes the proportion of SOV tours within the mileage threshold for which non-motorized vehicles might be substituted. This variable takes into account such factors as weather and trip purpose.
It is recommend that for the base conditions, these variables are based on household travel survey data from the region if possible. For policy testing, policies such as investments in bicycle infrastructure and bicycle parking might facilitate longer trips by bicycle (represented by increasing the Threshold variable) and allow a higher proportion of the shorter trips below the threshold to switch mode (represented by increasing the PropSuitable variable).
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RPAT's non-motorized vehicle model predicts the ownership and use of non-motorized vehicles (where non-motorized vehicles are bicycles, and also electric bicycles, Segways and similar vehicles that are small, light-weight and can travel at bicycle speeds or slightly higher than bicycle speeds).
The core concept of the model is that non-motorized vehicle usage will primarily be a substitute for short-distance single-occupant vehicle (SOV) travel. Therefore, the model estimates the proportion of the household vehicle travel that occurs in short-distance SOV tours. The model determines the maximum potential for household VMT to be diverted to non-motorized vehicles, which is then discounted based on the idea that only some of that travel will be appropriate for substitution for non-motorized travel because of issues such as weather conditions (e.g. winter weather) and the need to carry items (e.g., trips to grocery stores).
The Threshold variable defines the single-occupancy vehicle (SOV) tour mileage threshold used in the SOV travel proportion model; i.e. it is the upper limit for tour lengths that will be potentially switched to non-motorized travel.
The PropSuitable variable describes the proportion of SOV tours within the mileage threshold for which non-motorized vehicles might be substituted. This variable takes into account such factors as weather and trip purpose.
It is recommend that for the base conditions, these variables are based on household travel survey data from the region if possible. For policy testing, policies such as investments in bicycle infrastructure and bicycle parking might facilitate longer trips by bicycle (represented by increasing the Threshold variable) and allow a higher proportion of the shorter trips below the threshold to switch mode (represented by increasing the PropSuitable variable).
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