BRIDGING THE GAP:
APRIL 17, 2015
INSTITUTE FOR TRANSPORTATION 
RESEARCH AND EDUCATION
Economic, Health, and Transportation Impacts from 
Completing a Critical Link in a 22‐mile Rail Trail
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STUDY AREA
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Research Methods
Minimize outside factors and influences 
 “Before” and “After” approach
 Constrained timeline 
 Limited Study Area
 Data collection at same sites* and same time of year
 Short time elapse between bridge opening and YR 2 data 
collection (3 months)
*with exception of new bridge site in 2014 to capture localized change
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Study Timeline
• ‘Before’ Data Collection
May/June 
2013
• ATT Bridge Opens
February 
2014
• ‘After’ Data Collection
May/June 
2014
• Final Report
December 
2014
Impacts
Health
Transportation
Economy
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Data Collection
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Data Collection
Intercept Survey
 Trip Origins and Destinations
 Access Points and Turn Around 
Point on Trail
 Trip Purpose
 Frequency of Trail Use
 Duration of Active Part of Trip
 Economic Data
 Mode
 Demographic Information
Count Data
 Mode
 Demographic Information
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Data Collection
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Raw Data Collected
2013 2014 % Change
Counts
Weekday 3,946 6,813
Weekend 5,320 14,552
Total Counts 9,266 21,365 + 131%
Surveys
Weekday 546 839
Weekend 755 1,406
Total Surveys 1,301 2,245 +  73%
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Estimating Annual Trips
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Impact of the Bridge on the Economy
An increase of
$3.7 Million in
direct
expenditures
 $‐
 $500
 $1,000
 $1,500
 $2,000
 $2,500
 $3,000
Grocery Retail Restaurant
2013 2014
DirectExpenditures(Thousands)
Economic Impact on Businesses
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Impact of the Bridge on the Economy
Trail users’
expenditures
supported An
additional:
 43 jobs
 $1.3 million in
employee
compensation
 $4.9 million in gross
business revenues
 $‐
 $1,000
 $2,000
 $3,000
 $4,000
 $5,000
 $6,000
 $7,000
 $8,000
 $9,000
Gross
Revenue
Employee
Compensation
2013 2014
(Thousands)
0
10
20
30
40
50
60
70
80
Jobs
Total Impacts:  Direct, Indirect, and Induced
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Impact of the Bridge on Transportation
2013 
By Bicycle
22%
2013 
By Foot
28%
2014 
Increase in 
Active Travel 
to ATT 4%
2014 
By Car
46%
Round Trip
90%
2013 
Through 
Trip
8%
2014
Through 
Trip 
Increase 
2%
Change in Trip Type 
on Trail
Change in Mode Used 
to Access Trail
Shift in
Non-Recreational Trips
More opportunities for
active transportation
0
2
4
6
8
10
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Bike Walk Jog/Run All Modes
Avg. Distance Traveled In Miles
2013 2014
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Impact of the Bridge on Transportation
Distance Traveled by 
Activity on Trail
average
trip
distances
increased
by 27%
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Impact of the Bridge on Health
48
53
58
63
68
All Modes All Modes
Male Female
Average Trip Duration (Min.)
2013 2014
Average Trip DurationAverage
travel
duration
increased to
162 minutes
per week.
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Impact of the Bridge on Health
0 50 100 150
All Bicycle, Male
All Bicycle, Female
All Walker, Male
All Walker, Female
All Jogger/Runner, Male
All Jogger/Runner,…
Thousands of Calories
2013 2014
Calories Burned By Users of TrailTrail users
are estimated
to burn 175
million more
calories
annually.
(or 19,000 more 
cheese burgers per 
week)
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TO ACCESS FULL REPORT:
WWW.ITRE.NCSU.EDU/PUBLIC/BIKEPED.HTML
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PROJECT SPONSORS AND PARTNERS
Thank You!
KRISTY JACKSON
Bicycle and Pedestrian Program
knjackso@ncsu.edu / 919.515.8771
INSTITUTE FOR TRANSPORTATION 
RESEARCH & EDUCATION
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2015.04.16-ATT_Bridge - Triangle BikePed Workshop