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From page 16... ... 18 Use of Smart Work Zone Technologies for Improving Work Zone Safety initial criteria to assess the need for smart work zone technologies (based on user delay and traffic volumes) , an overview of several smart work zone technologies, a design process checklist, and guidance for system setup, procurement, and maintenance. Read the entire page →
From page 17... ... Literature Review 19 Source: IBI Group 2017. Figure 12. Read the entire page →
From page 18... ... 20 Use of Smart Work Zone Technologies for Improving Work Zone Safety Source: Texas DOT 2018. Figure 13. Read the entire page →
From page 19... ... Source: Kimley-Horn and Associates 2020. Figure 14. Read the entire page →
From page 20... ... 22 Use of Smart Work Zone Technologies for Improving Work Zone Safety Evaluation Studies, Guidance, and Standards for Specific Smart Work Zone Technologies In addition to general guidance for smart work zone technologies, guidance and evaluation studies are available for specific types of smart work zone technologies. These resources are described in the following sections, which are organized by type of smart work zone technology. Read the entire page →
From page 21... ... Literature Review 23 messaging interfaces (PCMS, smartphone with auditory messages only, and smartphone with audio-visual messages) (Figure 16) Read the entire page →
From page 22... ... 24 Use of Smart Work Zone Technologies for Improving Work Zone Safety is available from the Roadway Safety Consortium (2011) Read the entire page →
From page 23... ... Literature Review 25 McCrea 2018) Read the entire page →
From page 24... ... 26 Use of Smart Work Zone Technologies for Improving Work Zone Safety program that secondary crashes decreased by 19% during the first 6 months of program deployment compared to the same time period in the previous year (Tennessee DOT n.d.) Read the entire page →
From page 25... ... Literature Review 27 Source: Minnesota DOT 2015a. Figure 19. Read the entire page →
From page 26... ... 28 Use of Smart Work Zone Technologies for Improving Work Zone Safety week as compared to another nearby work zone on the same corridor (Kansas DOT 2016a) Read the entire page →
From page 27... ... Literature Review 29 [Copyright © American Road and Transportation Builders Association (ARTBA) Read the entire page →
From page 28... ... 30 Use of Smart Work Zone Technologies for Improving Work Zone Safety downstream speeds on PCMSs found that deceleration rates decreased when accurate information was shown to drivers (Hourdos et al. Read the entire page →
From page 29... ... Literature Review 31 requirements for a temporary speed radar trailer in its special provisions (Michigan DOT 2021) , while the South Dakota DOT lists conditions under which the use of RSFSs should be considered and placement guidelines for RSFSs in its construction manual (South Dakota DOT 2020) Read the entire page →
From page 30... ... 32 Use of Smart Work Zone Technologies for Improving Work Zone Safety Source: Stephens et al. Read the entire page →
From page 31... ... Literature Review 33 includes the identification of data sets, data formats, and distribution procedures for commercial vehicles (CVs) (Delaware DOT 2020) Read the entire page →
From page 32... ... 34 Use of Smart Work Zone Technologies for Improving Work Zone Safety Work Zone Location Technologies There has been some limited exploration and implementation of work zone location technologies. A design prototype was developed for a Smart Work Zone Activity App (SWiZAPP) Read the entire page →
From page 33... ... Literature Review 35 Work Zone Intrusion Alarm Experimental studies of work zone intrusion alarm systems have shown mixed results, while the availability of existing guidance for these systems is limited. Results from pilot testing of three work zone intrusion alarm systems in California showed good performance for Worker Alert System, limitations with SonoBlaster, and successful trials for Intellicone after resolution of some issues (Khan et al. Read the entire page →
From page 34... ... 36 Use of Smart Work Zone Technologies for Improving Work Zone Safety Proximity Alert Systems Proximity alert systems for construction equipment and workers based on various technologies have been developed and tested. The Embedded Safety Communication System, which uses tactile vibrations to communicate information about hazards to workers, was created by Park and Sakhakarmi (2019) Read the entire page →
From page 35... ... Literature Review 37 Source: Banaeiyan et al. Read the entire page →
From page 36... ... 38 Use of Smart Work Zone Technologies for Improving Work Zone Safety CMS developed by the Missouri DOT (Figure 32) indicated that the AFAD reduced approach speeds, stopped vehicles farther back, and released trac faster than a human agger (Brown et al. Read the entire page →
From page 37... ... Literature Review 39 Source: Liao 2014. Figure 33. Read the entire page →
From page 38... ... 40 Use of Smart Work Zone Technologies for Improving Work Zone Safety and methods for collecting data, is available from ATSSA (n.d.) Read the entire page →
From page 39... ... Literature Review 41 individual work zones. A circular from FHWA (2019b) Read the entire page →
From page 40... ... 42 Use of Smart Work Zone Technologies for Improving Work Zone Safety Smart Work Zone Technology Example Findings from Literature Example Resources General • Evaluation framework developed and used to determine benefit-cost ratios (2.1 to 1 to 6.9 to 1) (Edara et al. Read the entire page →
From page 41... ... Literature Review 43 Smart Work Zone Technology Example Findings from Literature Example Resources Work Zone Location Technologies • Smart Work Zone Activity App (SWiZAPP) successfully tested for user-friendliness and functionality (Adu-Gyamfi et al. Read the entire page →
From page 42... ... 44 A survey was developed and administered in order to gain greater understanding of the state of the practice for the use of smart work zone technologies in the United States. The survey, which included 18 questions, was reviewed by the topic panel before being sent to each state DOT via Qualtrics Survey Software (Qualtrics 2021) Read the entire page →
From page 43... ... Survey Results 45 not currently plan to employ work zone intrusion alarms. Other types of smart work zone technologies that DOTs have implemented include a website to provide information about lane closures, dynamic ramp meter with portable traffic signal, automated speed enforcement, and a downstream speed-notification system. Read the entire page →

From page 16...

... 18 Use of Smart Work Zone Technologies for Improving Work Zone Safety initial criteria to assess the need for smart work zone technologies (based on user delay and traffic volumes) , an overview of several smart work zone technologies, a design process checklist, and guidance for system setup, procurement, and maintenance.