ITE Journal - March 2020 - 46

Figure 4. Purdue Coordination Diagram (PCD) with new detection approach. The intersection is Lewis Avenue and Sunset Avenue in Waukegan, IL, USA.

Use of the Technology and Cost of the Program
The ATSPM program was deployed in three phases. Each phase of
the program makes optimal use of existing infrastructure by tying
together communications elements owned by multiple agencies.
Phase 1 was deployed and became operational in November
2017. The deployment included implementation of the initial
open-sourced ATSPM software (4.0.1) and traffic signal controller
software upgrades. As the ATSPM software was implemented in
house, the total cost for phase 1 was approximately $42,000 USD for
the traffic signal controller software upgrades for better utilization
of the high-resolution traffic signal data.
Phase 2 was completed in June 2019 and includes an upgrade
to the newest open-sourced ATSPM software, version 4.2, and
implementation of a watchdog feature which will create an alarm
to LCDOT personnel if detectors at traffic signals are not operating
correctly. Due to the staffing needs and complexity of updating a
software without an executable, the project was consulted out to a
company with traffic engineering and computer coding expertise.
The total cost for Phase 2 was approximately $52,000 USD.
Phase 3, completed in September 2019, included a request
for proposal (RFP) with system requirements from a systems
engineering analysis for a cloud-based solution with enhancements
for more tangible benefits. The budget for the five-year cloud-based
solution selected is $482,700 USD, which includes data storage,
initial implementation, two, two-day training courses, importing
existing signal configuration data, and six months of high-resolution data. The items of most importance to Lake County included
a solution that incorporates multiple different signal controller
vendors and the following advanced ATSPM features:
1.	 The ATSPM should be capable of providing offset recommendations for signal groups via the Purdue link pivot and report the
comparisons of logged data when requested by the user:
46

Ma rch 2020

ite j o u rn al

2.	

3.	

4.	

5.	

6.	

7.	

a.	 Day to day
b.	 Hour to hour
c.	 Hour of day to hour of day
d.	 Hour of week to hour of week
e.	 Day of week to day of week
f.	 Day of year to day of year
The ATSPM should be capable of providing cycle and split
recommendations for signal groups and report the comparisons
of logged data when requested by the user:
a.	 Day to day
b.	 Hour to hour
c.	 Hour of day to hour of day
d.	 Hour of week to hour of week
e.	 Day of week to day of week
f.	 Day of year to day of year
The ATSPM should be capable of analyzing past event logs and
provide alerts to the user when signal timing anomalies are
occurring. (This requirement may be fulfilled by sending the
alerts to a designated list of recipients by a designated means, or
by using an external maintenance management system.)
The ATSPM should be capable of a dashboard that has the
overall health of the traffic signals with ability to generate
recommendations on how to improve signals or signal groups.
The ATSPM should be capable of integrating travel times to
integrate different reporting features and generate new reporting
features, including, but not limited to, countywide heat maps.
The ATSPM should be capable of future integration of
connected vehicle technology, including, but not limited to,
vehicle trajectory to improve traffic signal timings.
The ATSPM should be capable of analyzing a user specified
before and after analysis of a signal group to generate a report
with the following performance benefits:



ITE Journal - March 2020

Table of Contents for the Digital Edition of ITE Journal - March 2020

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https://www.nxtbook.com/ygsreprints/ITE/ITE_June2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_May2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_April2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_March2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_February2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_January2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_December2019
https://www.nxtbook.com/ygsreprints/ITE/G110939_ITE_November2019
https://www.nxtbook.com/ygsreprints/ITE/G110110_ITE_October2019
https://www.nxtbook.com/ygsreprints/ITE/G110109_ITE_September2019
https://www.nxtbook.com/ygsreprints/ITE/G108559_ITE_August2019
https://www.nxtbook.com/ygsreprints/ITE/G108250_ITE_July2019
https://www.nxtbook.com/ygsreprints/ITE/G107225_ITE_June2019
https://www.nxtbook.com/ygsreprints/ITE/G104039_ITE_May2019
https://www.nxtbook.com/ygsreprints/ITE/G104038_ITE_April2019
https://www.nxtbook.com/ygsreprints/ITE/G104036_ITE_March2019
https://www.nxtbook.com/ygsreprints/ITE/G103582_ITE_February2019
https://www.nxtbook.com/ygsreprints/ITE/G102868_ITE_January2019
https://www.nxtbook.com/ygsreprints/ITE/G100155_ITE_December2018
https://www.nxtbook.com/ygsreprints/ITE/G100154_ITE_November2018
https://www.nxtbook.com/ygsreprints/ITE/G99495_ITE_October2018
https://www.nxtbook.com/ygsreprints/ITE/G98028_ITE_September2018
https://www.nxtbook.com/ygsreprints/ITE/G97366_ITE_August2018
https://www.nxtbook.com/ygsreprints/ITE/G96287_ITE_July2018
https://www.nxtbook.com/ygsreprints/ITE/G94315_ITE_June2018
https://www.nxtbook.com/ygsreprints/ITE/G93877_ITE_May2018
https://www.nxtbook.com/ygsreprints/ITE/G93065_ITE_Apr2018
https://www.nxtbook.com/ygsreprints/ITE/G91484_ITE_Mar2018
https://www.nxtbook.com/ygsreprints/ITE/G89434_ITE_Feb2018
https://www.nxtbook.com/ygsreprints/ITE/G86608_ITE_Jan2018
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