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User's Guide.pdf - MATSim

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use_logit_scale_parameter_from_<strong>MATSim</strong>: This sets the logit scale parameter to a <strong>MATSim</strong> default value (currently this is1.0)use_car_parameter_from_<strong>MATSim</strong>: This sets the marginal utility for traveling by car (beta tt,car ) to a <strong>MATSim</strong> default value(currently -12 utils/h). Otherwise the car_parameter settings (see below) are used.use_walk_parameter_from_<strong>MATSim</strong>: This sets the marginal utility for traveling on foot (beta tt,walk ) to a <strong>MATSim</strong> defaultvalue (currently -12 utils/h). Otherwise the walk_parameter settings (see below) are used.use_raw_sums_without_ln: If enabeld the summation of the term exp(V ik ) is computed, i.e. accessibility is computed asA i :=sum k ( exp(V ik ) ) for all opportunities k.logit_scale_parameter: Set a custom value for the logit scale parameter. Make sure that"use_logit_scale_parameter_from_<strong>MATSim</strong>" is disabled!car_parameter and walk_parameter: This allows to configure the disutility of traveling V ik,mode for a given mode (car, bicycle,walk) and thus to configure the accessibility measurement. V ik,mode is composed as follows:V ik,mode := V ik,tt,mode + V ik,tt 2 mode + V ik,ln(tt),mode + V ik,td,mode + V ik,td 2 mode + V ik,ln(td),mode + V ik,m,mode + V ik,m 2 mode + V ik,ln(m),modewhere "tt" are travel times, "td" are travel distances and "m" are monetary costs.Each summand V ik,xx,mode consists of the following contributions, see Figure 5:1. The disutility of travel of reaching the transport network from origin i. It is assumed that opprotunities (e.g. work places) canonly be reached via the transport network.2. The disutiliy of travel on the network towards opportunity k3. The disutility of travel reaching opportunity k from the transport networkAs a result the disutility V ik,xx,mode is composed as follows:V ik,xx,mode := beta xx,wlk * xx wlk,gap,i + beta xx,mode * XX mode + beta xx,wlk * xx wlk,gap,kwhere xx refers to the travel costs (tt, tt 2 ,ln(tt), td, td 2 ,ln(td), m, m 2 ,ln(m)) and beta xx,wlk and beta, xx,mode are marginal utilitiesthat convert the given travel cost into utils.Setting the marginal utility beta xx to zero removes the corresponding summand from the equation. In order to use your ownV ik,mode make sure that the corresponding switches ("use_car_parameter_from_<strong>MATSim</strong>" and/or"use_walk_parameter_from_<strong>MATSim</strong>") are disabled.Figure 5: The composition of the disutility V ik,xx,mode consists of three parts: the cost (1) to reach network from i, (2) the cost on thenetwork and (3) the costs to reach the opportunity k from the network.random_location_distribution_radius_for urbansim_zone: This option is only relevant for UrbanSim zone applications. Itrandomly distributes persons living in a certain zone within a given radius (in meter) around the zone centroid. See also section 4"Additional <strong>MATSim</strong>4UrbanSim Parameters" for an alternative distribution of persons.Figure 6: The random_location_distribution_radius_ for_urbansim_zone parameter randomly distributes persons (red dots) living in acertain zone within a given radius around the zone centroid (blue dot).<strong>MATSim</strong> Config:This section contains parameters for the configuration of the traffic model.common: The common subsection provides some basic configuration options for <strong>MATSim</strong>

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