United States Department of Transportation
i
"Green-friendly" best management practices (BMPs) for interstate rest areas -- phase II.
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2013-06-01
[PDF-4.97 MB]
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Abstract:Interstate rest area buildings in Illinois range in age from 10 to nearly 50 years old and are on display and used 365 days a
year by nearly 40 million people annually. The rest area sites comprise 53 buildings that provide restroom facilities, vending
machines, and 11 welcome centers. These facilities are presently being maintained within the allowable budgets; however,
they are in need of upgrades to improve their environmental and economic performance in supporting recent sustainability
initiatives in Illinois. The main goal of this project was to investigate, determine, and recommend a list of green-friendly best
management practices (BMPs) for the six interstate rest areas that have the highest energy consumption in Illinois. These six
rest areas are Willow Creek, Coalfield, Great Sauk Trail, Mackinaw Dells, Cumberland Road, and Turtle Creek, which account
for 32% of IDOT’s rest area energy bills. The main results and findings of this study include (1) an online survey of state
departments of transportation (DOTs) conducted to gather information on their experiences in implementing green-friendly
measures in rest areas, welcome centers, office buildings, and related buildings; (2) an investigation of installing temporary or
permanent sub-metering systems to measure, monitor, and analyze the actual energy consumption of devices and fixtures in
the six rest areas; (3) on-site assessments and field measurements of the six rest areas; (4) an identification of energy and
water-saving alternatives that can be implemented in the six rest areas, including: LED and induction lighting; motion sensors
for interior lighting, vending machines, and exhaust fans; grid-connected photovoltaic systems; solar water heaters; solar tube
lighting; double-pane glass, vestibule entrances; Energy Star–rated HVAC systems; geothermal heat pumps; and watersaving
plumbing fixtures; (5) an energy audit analysis for the six selected rest areas, using eQuest energy simulation software
to analyze the impact of implementing various energy-saving alternatives; (6) an economic analysis of the identified energysaving
alternatives for the selected rest areas in terms of their required upgrade costs, life-cycle cost, and payback periods;
and (7) a practical and user-friendly decision support tool that is capable of identifying optimal upgrade measures for public
buildings in Illinois to achieve a specified Leadership in Energy and Environmental Design ( LEED) certification with the
minimum upgrade costs or achieve the highest LEED points within a given upgrade budget.
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