Routing/Travel Time Analysis/Analyzer/Sample Simulated

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Simulated Data

Free flow travel times + traffic delay tests

A model for travel times in the sample day was created (red lines). Travel times at random times of day were generated from the model - a noise was added (blue crosses). Then the Analyzer run on the simulated travel times, trying to estimate travel time model (green line). Finally the original model and the estimated model from Analyzer are compared.

100 travel times

Travel times: [1]

Results:

 <models-db>
   <model node-from="1" node-to="2" way="100" freeflow="58.8" avg-delay="11.9">
     <traffic-delay from="00:00:00" to="04:45:00" day="Monday" delay="0.7" />
     <traffic-delay from="07:00:00" to="14:00:00" day="Monday" delay="14.3" />
     <traffic-delay from="14:00:00" to="16:00:00" day="Monday" delay="33.1" />
     <traffic-delay from="16:00:00" to="19:30:00" day="Monday" delay="19.5" />
   </model>
 </models-db>

Vizualization:

TTA simulated-100.png

160 travel times

Travel times: [2]

Results:

 <models-db>
   <model node-from="1" node-to="2" way="100" freeflow="59.7" avg-delay="10.8">
     <traffic-delay from="01:45:00" to="07:15:00" day="Monday" delay="0.9" />
     <traffic-delay from="07:15:00" to="08:30:00" day="Monday" delay="29.8" />
     <traffic-delay from="08:30:00" to="14:00:00" day="Monday" delay="11.1" />
     <traffic-delay from="14:00:00" to="16:30:00" day="Monday" delay="31.2" />
     <traffic-delay from="16:30:00" to="19:30:00" day="Monday" delay="13.9" />
     <traffic-delay from="19:30:00" to="22:15:00" day="Monday" delay="1.1" />
   </model>
 </models-db>

Vizualization:

TTA simulated-180.png

Traffic signals delay

Travel times for segment with traffic signals were generated. The Analyzer tried to estimate traffic signals delay from the data.

Travel times: [3]

Results:

 <models-db>
   <model node-from="1" node-to="2" way="100" freeflow="100.0" avg-delay="0.0" signals-delay="47.7" signals-prob="0.68" />
 </models-db>

Expected probability was 0.7 and expected delay 50s.