Trip Generation: Police Stations

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Trip Generation Police Stations

• By Armans, Peter
• Edmonds, Susan M.
• Gillenwater, Jennifer M.
• Marticorena, Norberth R.
• Monsef, Kouros
• Zaher, Ali B.
• Zaher, Mouhamad B.

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Purpose of Trip Generations

• The first step of traffic forecasting
• It predicts the number of trips originating from
  or destined for a location
• Trip generation is used by planners to determine
  fees and taxes for new construction

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Police stations
Not stand-alone police station
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Differences Between Stand Alone Stations and
Community Centers

• ? Stand Alone Stations Are for Police Purposes
  Only
• ? Community Centers Include Uses for Community
  Meetings, Courts, Fire Stations, or City Offices

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The Troutdale Police Station A Stand Alone
Station
Police Vehicle Parking
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Portland City Police (106th Station)
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Portland Police Bureau Traffic division
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Purpose of Our Project

• ITE Manual (Institute of Transportation
  Engineering)
• The trip generation as described in the manual is
  based on land use and building square footage
• The manual, however does not include information
  regarding stand-alone police stations
• Our purpose was to gather statistical data to
  create a trip generations for stand-alone police
  stations

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Process

• Important Factors
• Traffic Caused by the Existence of the Station
• Building Uses
• The Buildings Size
• Parking Spaces
• Number of Employees
• Peak Hours of Operation

• Data Collection
• Between the Hours of 4 PM to 6 PM
• Time Intervals of 5 minutes
• Note Police Vehicle or Private Vehicle
• If Necessary Differentiate Between Police Traffic
  and Other Traffic

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Data Collection
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Analysis
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Analysis
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Land Use Area vs. Trips
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wrapping up

• The linear regression result
• Trips (1.6 x building square footage) 2.9
• This formula can be used to predict future trip
  generations
• It would be desirable to conduct more data
  collection, with duplication of police stations
  for more accurate trip generation
• Examples