Applications of Oblique Aerial Imagery in

Transportation Planning

Who is “We”?

• TMIP – Transportation Model Improvement Program.– Subdivision of TTI – Texas Transportation Institute– Working with FED DOT on Consultant basis

– We decided:

GO BIG OR STAY HOME……

Where this info can be used

• TRB – Transportation Research Board• AMPO – Association of Metropolitan

Planning Organizations• GIS-T – GIS for Transportation• FED DOT Resource Website• State Sales• Local MPO’s or Equivalent• County Sales

Better, Stronger, Faster: how Oblique Aerial Imagery is

changing the Face of Transportation Planning

Planning Organization vs. DOT

• Planning organizations work on a regional level. They deal with larger issues, transportation studies, evacuations, air quality, light pollution and all types of mass-transit.

• DOT’s are your day-to-day operations. Pavement conditions, snow plowing/routing, paint conditions…

Method

• 58 MPO’s were Represented by our 140 existing counties

• Of the 58, 43 have coverage over 50% of their represented population

• Of the 58, 34 have coverage over 50% of their represented land area

• Of the 58, 26 have 100% of both

• Of the 58, 17 use Pictometry

28 MPO’s Interviewed

• Transportation Planners

• Transportation Modelers

• GIS Professionals

• ALSO: 9 of the above were interviewed from; Mass. Highway / Conservation / Recreation Departments and the City of Rockville, MD.

Benefits of Oblique Imagery

• Save Labor, Time, Money

• Reduces Travel Expense

• Reduces or Eliminates Field Visits

• Increased Accuracy (data verification & collection)

• Requires Less “Educated Interpretation”

• Excellent Tool for Public Process through Increased Problem Recognition/Solution

Current Uses

• Allocation of Floor Space• Clearly Seeing View not avail from Ground• Collection of Data• Improve Data Integrity• Identify Vertical Code Violations• ROM Planning• Infrastructure Inventory• Identify Centroid Connectors – TAZ Zones

• Estimate Walk to Transit• Land Use Classification• Dignitary Safety / Even Planning• Emergency Preparedness• Pedestrian Safety• Emergency Response• Crash Reporting / Analysis• Snow Removal Planning• Search and Rescue / Fire Control• Public Meeting Communications• Addressing Complaints Expediently

• Odd, every day things; Dam dismantling plan, Roadway Projects, Involvement Program, Develop a Training Tool…

Current Barriers to Implementation

• Storage Space

• Implementation to hundreds of users

• Strong Perception that it is Cost Prohibitive

• Lack of Cross Agency Communications or Interest.

• Lack of Competition

• Proof of Value is Still Being Evaluated

Future Uses

• Barrier / Retaining Wall Inventory

• Slope Identification

• Change Analysis

Change Analysis:

Example of Oblique imagery

In Change Analysis

(Before / After)

Viewed from four different

Directions