public void reset() {
measured_flow_profile_veh.reset();
try {
cms.reset();
} catch (BeatsException e) {
e.printStackTrace();
}
}
public NodeData(
Controller parent,
Link profileLink,
String demandStr,
Double knob,
Double dpdt,
Scenario scenario) {
this.knob = knob;
this.myNode = profileLink.getBegin_node();
meas = profileLink;
feeds = new ArrayList<Link>();
not_feeds = new ArrayList<Link>();
// incoming link sets
for (int i = 0; i < myNode.getnIn(); i++) {
Link link = myNode.getInput_link()[i];
if (link.isFreeway() || link.isHov()) feeds.add(link);
else not_feeds.add(link);
}
// outgoing link sets
not_meas = new ArrayList<Link>();
for (int j = 0; j < myNode.getnOut(); j++) {
Link link = myNode.getOutput_link()[j];
if (meas != link) not_meas.add(link);
}
if (meas == null) return;
// find the demand profile for the offramp
measured_flow_profile_veh =
new BeatsTimeProfileDouble(demandStr, ",", dpdt, 0d, scenario.get.simdtinseconds());
measured_flow_profile_veh.multiplyscalar(scenario.get.simdtinseconds());
// alpha_tilde = new Double[myNode.nIn];
// create the actuator
edu.berkeley.path.beats.jaxb.Actuator jaxbA = new edu.berkeley.path.beats.jaxb.Actuator();
edu.berkeley.path.beats.jaxb.ScenarioElement se =
new edu.berkeley.path.beats.jaxb.ScenarioElement();
edu.berkeley.path.beats.jaxb.ActuatorType at =
new edu.berkeley.path.beats.jaxb.ActuatorType();
se.setId(myNode.getId());
se.setType("node");
at.setId(-1);
at.setName("cms");
jaxbA.setId(-1);
jaxbA.setScenarioElement(se);
jaxbA.setActuatorType(at);
cms = new ActuatorCMS(scenario, jaxbA, new BeatsActuatorImplementation(jaxbA, scenario));
cms.populate(null, null);
cms.setMyController(parent);
}
public void update(Clock clock) {
int i, j;
int e = 0;
if (measured_flow_profile_veh.sample(false, clock))
current_flow_veh = measured_flow_profile_veh.getCurrentSample() * knob;
if (BeatsMath.equals(current_flow_veh, 0d)) {
beta = 0d;
return;
}
// Sf: total demand from "feeds"
Double Sf = 0d;
for (Link link : feeds) Sf += BeatsMath.sum(link.get_out_demand_in_veh(e));
// compute demand to non-measured, total $+phi, and from feed links phi
ArrayList<Double> beta_array = new ArrayList<Double>();
// compute sr normalization factor for feeding links
// for(i=0;i<myNode.getInput_link().length;i++) {
// if (!feeds.contains( myNode.input_link[i]))
// continue;
// alpha_tilde[i] = 0d;
// for (j = 0; j < myNode.nOut; j++)
// if(not_meas.contains( myNode.output_link[j]))
// alpha_tilde[i] += myNode.getSplitRatio(i, j);
// }
// freeflow case
beta_array.add(0d);
beta_array.add(current_flow_veh / Sf);
// rest
for (j = 0; j < myNode.nOut; j++) {
Link outlink = myNode.output_link[j];
// case for the measured
if (not_meas.contains(outlink)) {
double dem_non_feed = 0d; // demand on j from non-feeding links
double dem_feed = 0d; // demand on j from feeding links
for (i = 0; i < myNode.nIn; i++) {
Link inlink = myNode.input_link[i];
// Double alpha_ij = myNode.getSplitRatio(i,j);
Double Si = BeatsMath.sum(inlink.get_out_demand_in_veh(e));
if (feeds.contains(inlink)) dem_feed += Si; // alpha_ij * Si / alpha_tilde[i];
else // otherwise add to total
dem_non_feed += 0d; // alpha_ij * Si;
}
Double R = outlink.get_available_space_supply_in_veh(e);
double num = current_flow_veh * (dem_non_feed + dem_feed);
double den = Sf * R + dem_feed * current_flow_veh;
beta_array.add(den > 0 ? num / den : Double.POSITIVE_INFINITY);
}
}
beta = Math.min(BeatsMath.max(beta_array), 1d);
}
