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- Applications for the Environment: Real-Time Information Synthesis
(AERIS) Program
- Fall/Winter Webinar Series
- February 13th, 2013
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- Similar to today’s ITS: high occupancy vehicle (HOV) lanes
- Imagine tomorrow’s connected vehicle:
- Dedicated eco-lanes on freeways optimized for the environment that
encourage use by low emission, high occupancy, freight, transit, and
alternative fuel or regular vehicles operating in eco-friendly ways.
- Eco-speed limits optimized for the environment based on data collected
from vehicles. Eco-speed limits would be implemented to help to reduce
unnecessary vehicle stops and starts by maintaining consistent speeds,
thus reducing GHG and other emissions.
- Cooperative eco-adaptive cruise control (CACC) applications where
individual drivers may elect to opt-into applications that provide
cruise control capabilities designed to minimize vehicle accelerations
and decelerations for the benefit of reducing fuel consumption and
vehicle emissions.
- Inductive charging infrastructure that charges electric vehicles moving
at highway speeds.
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- Provides an operational description of “how” the Transformative Concept
may operate.
- Communicates user needs and desired capabilities for and expectations of
the Dynamic Eco-Lanes Transformative Concept .
- Builds consensus among AERIS user groups and stakeholders concerning
these needs and expectations.
- USDOT
- State and Local Departments of Transportation (DOTs)
- Regional Planning Organizations
- The Automotive Industry
- ITS Developers, Integrators, and Researchers
- Serves as a guideline moving forward with research and development of AERIS
applications.
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- Surface transportation has a significant impact on the environment:
- Transport sector accounts for 28% of GHG emissions in the US.
- Surface vehicles represent almost 80% of the transport sector GHG in
the US.
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- HOV Lanes
- Restricted traffic lanes, reserved at peak travel times (or longer) for
exclusive use of vehicles with a driver and one or more passengers.
- Increase average vehicle occupancy and person throughput.
- Improve traffic flow, reducing car trips, and thus reduce vehicular
emissions.
- Some jurisdictions exempt low emission and green vehicles (e.g., hybrid
vehicles).
- HOT Lanes or Express Lanes
- Capitalize on unused capacity in HOV lanes by providing motorists in single-occupant
vehicles access to HOV lanes.
- Pricing schemes are established to minimize traffic congestion on the
HOT lanes.
- Collect fee using open roll tolling (ORT) technologies.
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- Variable Sped Limit (VSL) Systems
- Collect traffic data using traffic sensors and post speed limits that
harmonize traffic flow using dynamic speed signs.
- Account for traffic conditions, weather conditions, time of day,
traffic incidents and lane closures.
- Reduce congestion, provide more reliable journey times, reduce the
frequency of accidents, reduce carbon emissions, and reduce driver
stress.
- Speed Reductions
- Research from the University of Texas at Austin found that reducing
speed limits on a freeway from 65 mph to 55 mph on a “Code Red Air
Quality Day” resulted in a 17% reduction in NOx over a 24
hour period.
- Graz, the second largest city in Austria, reduced speed limits from 50
kph (31 mph) to 30 kph (19 mph) for the entire city area. During the two-year
trial, NOx emissions were reduced by 25%.
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- The Dynamic Eco-Lanes:
- Feature dedicated lanes optimized for the environment, referred to as
eco-lanes. Eco-lanes are similar to high-occupancy vehicle (HOV) lanes
and are optimized for the environment through the use of connected
vehicle data.
- Target low-emission, high-occupancy, freight, transit, and
alternative-fuel vehicles (AFV).
- Allow drivers to take advantage of eco-friendly applications such as
eco-cooperative adaptive cruise control (CACC) and vehicle platooning.
- Include variable speed limits optimized for the environment – referred
to as eco-speed limits.
- Support the operation of dynamic eco-lanes, including establishing
criteria for entering the lanes and defining or geo-fencing the
eco-lane boundaries, allowing the lanes to be dynamic.
- Include inductive charging capabilities for electric vehicles.
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- Eco-Lanes may:
- Be implemented on arterials or freeways.
- Consider dynamic parameters:
- Location of the lanes
- Number of lanes (e.g., single lane or multiple lanes)
- Types of vehicles allowed to use the lanes
- Open to all vehicles
- Restricted to low emission vehicles
- Truck-only lanes
- Transit-only lanes
- Various operational strategies
- Eco-speed limits
- Vehicle platooning
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- The AERIS Program wants to hear your thoughts on the Dynamic Eco-Lanes
Transformative Concept.
- You can provide inputs and feedback using the AERIS IdeaScale Site (https://aeris.ideascale.com).
- The AERIS Program will be conducting a Workshop on March 26th-27th
to walk-through the Concept of Operations for the Dynamic Eco-Lanes
Transformative Concept and other AERIS ConOps. To register for the
workshop, visit: www.itsa.org/aeris2013
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Notes
