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Pavement Replacement Priority in Seattle

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Pavement Replacement Priority in Seattle Ali Boyum, Kayla Dantzler, John Mayfield, Derek Van De Wege Overview Project Scope Area of Interest Data Collection Data ... – PowerPoint PPT presentation

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Title: Pavement Replacement Priority in Seattle


1
Pavement Replacement Priority in Seattle
  • Ali Boyum, Kayla Dantzler, John Mayfield, Derek
    Van De Wege

2
Overview
  • Project Scope
  • Area of Interest
  • Data Collection
  • Data Analysis
  • Results

3
Project Scope
  • Pavement near bus stops experience high stresses
  • Metro is interested in replacing asphalt pavement
    with Portland Cement Concrete

4
Area of Interest
5
Data Collection
  1. Pavement Near Bus Stops
  2. Number of buses at each stop per day
  3. Pavement Conditions
  4. Pavement Types

6
Pavement Near Bus stops
  • Buffer 50 feet along street

7
Bus Traffic Volumes At Stops
  • Tabulated Bus volumes along each route from King
    County Metro
  • Summed buses from each route for each stop

8
Pavement Conditions
  • Using the PMPCI rating index (from 0-100)

9
Pavement Types
  • Red- asphalt
  • Blue- concrete

10
High Risk Areas
  • Bus Stops
  • Pavement Types
  • Pavement Condition

11
Analysis of Traffic Volumes With Pavement
Conditions
  • High priority areas are sections of road where
    all three high risk conditions overlap
  • More than the mean bus volumes at stops
  • Pavement condition rating below 50
  • Sections of asphalt pavement
  • Medium priority areas are sections of road where
    two of the conditions overlap
  • Low priority areas are sections of road where
    there is only one of the conditions

12
Results
  • Red High Priority
  • Blue Medium Priority
  • Green Low Priority

13
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