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CityBus Reliability. Jimmy Khorshid – jkhorshi@purdue Daniel Richards – dsrichar@purdue Nick Saraniecki – nsaranie@purdue Richie Schultz – rschultz@purdue. Project Objective. To determine the reliability of the following bus routes: Gold/Silver/Bronze Loops Tower Acres Ross Ade.
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CityBus Reliability Jimmy Khorshid – jkhorshi@purdue Daniel Richards – dsrichar@purdue Nick Saraniecki – nsaranie@purdue Richie Schultz – rschultz@purdue
Project Objective • To determine the reliability of the following bus routes: • Gold/Silver/Bronze Loops • Tower Acres • Ross Ade
Site Location • The site location is Purdue University • We will collect data from two bus stop locations: • University & 3rd • Class of 50
Data Collection Plan • Each group member sat at one bus stop for one hour • At the Class of 50 stop we collected data for the Gold, Silver, and Bronze loops • At University & 3rd street we collected data for the Ross Ade and Tower Acres loops • We used watches that have been calibrated to the time.gov website • We recorded the arrival time of each bus at each stop
Gold Loop Analysis • On time 4 of 13 buses • Largest off schedule time was (+/-) 5 minutes • 2 buses showed up at 11:50 AM and 1 left on time at 11:55 AM. • This is acceptable for people at this bus stop, but is far off schedule for the rest of the bus stops on the loop • There was an extra bus at 1:35 PM
Silver Loop Analysis • Most buses per hour • Because the buses come so often they sometimes come in as groups of 2 buses at a time • This causes a bus to occasionally miss a stop causing long delays • On time only 3 of 23 times, but off by 1 minute 8 of 23 times
Bronze Loop Analysis • This bus only came every half hour • This caused us to not have a lot of data for much discussion • From the limited data the Bronze loop seemed to be fairly on time every time
Tower Acres Analysis • Only on time twice • 7 of 13 times they were greater than 2 minutes early or late • One bus didn’t arrive causing a 15 minute gap between buses when it should have only been 5 minutes • According to data, unreliable half of the time
Ross Ade Analysis • Never exactly on time • Arrived 10 minutes or later twice • 6 of 13 buses were within 2 minutes of expected time • One bus didn’t arrive which resulted in an 18 minute gap between buses • Most unreliable loop studied
Example Data Results • The chart below totals the entire data • It compares the total percentage on time • We consider on time by being within plus or minus 1 minute of the expected time
Interpretation of Results • Based on our criteria of on time or not we have concluded that: • Reliable: Silver and Bronze Loops • Unreliable: Tower Acres and Ross Ade • More data is needed to find a clear pattern for the Gold Loop to determine if it is reliable or not • We found multiple times within the limited data that the buses were bunched up or completely missing scheduled stops • Due to congestion in the Memorial Mall we feel the buses are getting off schedule • We think that Tower Acres and Ross Ade can skip the mall and drop passengers off at the Beering stop