• Comprehensive study underway assessing vehicular, pedestrian, bicycle, and transit operations.
• Extensive study area includes 17 intersections. (11 signalized & 6 unsignalized)
• Accident data has been collected for each of the study area intersections for the most recent three year period. (2006-2008)
• Data collection includes 11 hour volumes covering daily peak periods for vehicles, pedestrians, and bicycles.
• Origin and destination information has been collected for the Casey Overpass
• The project team is working closely with the Central Transportation Planning Staff (CTPS) to develop models for use in alternatives evaluation.

 Data Collection:

• Traffic count data: Manual turning movement counts (MTMCs) were collected in June of 2010 and seven-day automatic traffic recordings (ATRs) were collected in June of 2010. The count data was adjusted for seasonal variation.
• License Plate Data on Casey Overpass and at 5 parking lots was collected in November of 2010 and is being used to identify vehicle origins.

• The average daily traffic (ADT) volume on Casey Overpass is approximately 24,000 vehicles per day. There are approximately 12,000 vehicles per day on New Washington Street.
• The weekday morning peak hour occurs from 7:15AM to 8:15AM
• The weekday evening peak hour occurs from 5:00PM to 6:00PM
• The midday peak is lower than both AM and PM peaks.
• Vehicle, pedestrian, and bicycle volumes are depicted on the graphics
• Accident rates are below the MassDOT averages, except Shea Circle
• Existing conditions have been calibrated based on field observations. CTPS has used the origin-destination data to calibrate regional traffic model.
• Existing Conditions: Traffic Highlights Map
• Boston TAZ Region Area 1
• Regional Traffic Destinations PM Peak
• Regional Traffic Origins PM Peak
• Regional Vehicle Trips AM Peak
• Regional Vehicle Trips PM Peak
• Traffic Percentages

Next Steps:

• In conjunction with CTPS, the project team is developing projections for future traffic volumes (2030) for the study area roadways, taking into account regional population and employment projections along with specific development proposals in the area of the Casey Overpass
• Future volumes (vehicle, pedestrian, and bicycle) will be applied to the existing infrastructure and the build alternatives that are developed for this project