Objective - To provide support to the marketplace for application
development, i.e., enabling development of Advanced Traveler Information
Systems. EnableATIS is not developing a specific application or system,
but is rather seeking to formalize a framework whereby multiple activities
are envisioned to interact to support a diverse traveler information environment.
The report from CloudCar project indicated that for the current scope
of the CloudThink and Mobility as a Service project, MySQL is
sufficient. For larger scale deployment of CloudThink and MaaS, a
framework better suited for large data should be used, such as Hadoop.
Test data indicates acceptable performance of SmarTrAC, with the
project team observing a reasonable battery consumption rate, a
moderate data storage/transmission requirement, a high accuracy in
identifying activity vs. trip episodes, etc.
Dallas (TX) and San Diego (CA) Multi-Modal Corridor AMS Testbeds
Chicago (IL) Road-Weather AMS Testbed
Objectives - To develop multiple AMS Testbeds to evaluate the system
wide impacts of individual and logical combinations of DMA bundles/ATDM
strategies, and identify conflicts and synergies in order to maximize
On days with rain and low demand, SPD-HARM+INC-ZONE increased delay.
BSM frequency is not always critical for the effectiveness of DMA
applications – difference in impacts of 1s and 3s frequencies is
minimal (less than 0.5%).
Effectiveness of DMA applications reduces with increase in latency - most
of the benefits of the system disappear beyond 1s-latency.
Level of penetration of technology is an essential factor in the DMA
application effectiveness – MMITSS results in 13% reduction in vehicle delay
at 100% market penetration compared to the base case vs. 6% reduction
at 25% penetration.
SPD-HARM, INC-ZONE, MMITSS, and SPD-HARM + INC-ZONE
Benefit of implementing applications in isolation or in combination
differs from one operational condition to another:
On dry weather days, delay reduced by 4% with SPD-HARM+INC-ZONE,
compared to 2.5% reduction with only SPD-HARM and 0.8% reduction with