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From page 64... ... 66 Use of Smart Work Zone Technologies for Improving Work Zone Safety DOT Basis for Selection as Case Example Smart Work Zone Technologies Already Implemented* Arizona • Southwestern climate • Completion of technical concept study • Development of spreadsheet tools to support implementation • Use of Increase Federal Share Incentive for Innovation 1. Read the entire page →
From page 65... ... Case Examples 67 Source: Maricopa County DOT and Arizona DOT. Source: Kalina 2019. Read the entire page →
From page 66... ... 68 Use of Smart Work Zone Technologies for Improving Work Zone Safety technologies have been hindered by low traffic counts during the COVID-19 pandemic. In addition, the Arizona DOT finds it difficult to obtain data to document the safety benefits because of the short duration of most work zones. Read the entire page →
From page 67... ... Source: Kimley-Horn and Associates 2019b. Figure 47. Read the entire page →
From page 68... ... 70 Use of Smart Work Zone Technologies for Improving Work Zone Safety its efforts to implement smart work zone technologies since 2018. Through pilot projects, the Colorado DOT has deployed the following types of technologies in most of its five regions: traveler information systems, QWSs, portable variable speed limit (PVSL) Read the entire page →
From page 69... ... Case Examples 71 smart work zone systems (Appendix F) , descriptions and layout drawings for the technologies (e.g., Figure 50) Read the entire page →
From page 70... ... 72 Use of Smart Work Zone Technologies for Improving Work Zone Safety Source: Colorado DOT and Ulteig Engineers 2020. Figure 50. Read the entire page →
From page 71... ... Case Examples 73 Colorado is the lead state for the Autonomous Maintenance Technology pooled fund, which seeks to encourage research regarding the use of autonomous technologies for work zone applications (Colorado State University n.d.) Read the entire page →
From page 72... ... 74 Use of Smart Work Zone Technologies for Improving Work Zone Safety Colorado DOT is working toward a more integrated approach to implementing smart work zone technologies at the state level. Project Highlight: I-25 South Gap (Monument to Castle Rock) Read the entire page →
From page 73... ... Source: Colorado DOT and APEX Design 2020a. Figure 54. Read the entire page →
From page 74... ... 76 Use of Smart Work Zone Technologies for Improving Work Zone Safety is the first project for the Colorado DOT to have a traffic operations center (TOC) (Project Operation Center) Read the entire page →
From page 75... ... Case Examples 77 (a) Read the entire page →
From page 76... ... 78 Use of Smart Work Zone Technologies for Improving Work Zone Safety leverages various technologies such as wireless communications, roadside units, onboard units (OBUs) , and vehicle sensors to determine roadway hazards and provide warnings to drivers. Read the entire page →
From page 77... ... Case Examples 79 Iowa DOT Iowa DOT Implementation of Smart Work Zone Technologies The Iowa DOT has implemented several smart work zone technologies, including data collection, automated queue warning, location technologies, temporary sensors and cameras, traveler information systems, temporary modifications or enhancements to permanent traffic incident management (TIM) plans, and automated warning of construction equipment or vehicles entering in short merge areas. Read the entire page →
From page 78... ... (Map data © 2016 Google) Source: Florida DOT 2016. Read the entire page →
From page 79... ... Case Examples 81 Source: Florida DOT. Figure 60. Read the entire page →
From page 80... ... 82 Use of Smart Work Zone Technologies for Improving Work Zone Safety strong support from management and partnerships with consultants and vendors are vital to the success of its implementation efforts. Cellular connectivity has not been an issue as there is sufficient cellular coverage in the state. Read the entire page →
From page 81... ... Source: Iowa State University 2021b. Figure 62. Read the entire page →
From page 82... ... Source: Iowa State University 2021c. Figure 63. Read the entire page →
From page 83... ... Source: Iowa State University 2021c. Figure 64. Read the entire page →
From page 84... ... 86 Use of Smart Work Zone Technologies for Improving Work Zone Safety Source: Sprengeler 2020. Figure 65. Read the entire page →
From page 85... ... Source: Iowa DOT 2021b. Figure 67. Read the entire page →
From page 86... ... 88 Use of Smart Work Zone Technologies for Improving Work Zone Safety Massachusetts DOT Massachusetts DOT Implementation of Smart Work Zone Technologies The Massachusetts Department of Transportation (Massachusetts DOT) has implemented various smart work zone technologies, including traveler information systems, work zone data collection technologies, queue warning, dynamic lane merge, and a dynamic ramp meter system. Read the entire page →
From page 87... ... Case Examples 89 To address challenges associated with managing work zone data in different formats from multiple vendors, the Massachusetts DOT implemented the customized Smart Work Zone Manager tool. The application serves as an interface between different vendor software programs and provides for central control and monitoring. Read the entire page →
From page 88... ... (Map data © 2020 Google) Source: IBI Group and Massachusetts DOT. Read the entire page →
From page 89... ... Case Examples 91 Source: Boudreau 2021b. Figure 70. Read the entire page →
From page 90... ... 92 Use of Smart Work Zone Technologies for Improving Work Zone Safety from the back of queue. Delays were observed during construction, with the average travel time at 7 a.m. Read the entire page →
From page 91... ... Case Examples 93 (Google Maps data © 2020 Tele Atlas, Imagery © 2020 TerraMetrics) Source: Boudreau et al. Read the entire page →
From page 92... ... 94 Use of Smart Work Zone Technologies for Improving Work Zone Safety Source: Boudreau et al. Read the entire page →
From page 93... ... Case Examples 95 Source: Minnesota DOT 2020d. Figure 75. Read the entire page →
From page 94... ... 96 Use of Smart Work Zone Technologies for Improving Work Zone Safety Source: Minnesota DOT 2020d. Figure 76. Read the entire page →
From page 95... ... Case Examples 97 (a) Read the entire page →
From page 97... ... Case Examples 99 Source: Oregon DOT 2016. Figure 79. Read the entire page →
From page 98... ... 100 Use of Smart Work Zone Technologies for Improving Work Zone Safety Source: Oregon DOT 2016. Figure 80. Read the entire page →
From page 99... ... Case Examples 101 Source: Oregon DOT 2020b. Figure 81. Read the entire page →
From page 100... ... 102 Use of Smart Work Zone Technologies for Improving Work Zone Safety • Many of these DOTs find that strong partnerships with local agencies, consultants, and vendors provide valuable support for the implementation of smart work zone technologies. • Procurement strategies include the maintenance of a DOT vendor list and the use of single or multiple vendors, specific pay items, and force accounts with one pay item. Read the entire page →
From page 101... ... 103 Synthesis Objectives, Scope, and Methodology The objective of the synthesis was to review and document state DOT practices regarding the use of smart work zone technologies to improve safety for motorists, construction workers, and other users of the transportation system. The synthesis scope included evaluation studies, integration with crowdsourcing systems, performance measures, and measures of return on investment in smart work zone technologies. Read the entire page →
From page 102... ... 104 Use of Smart Work Zone Technologies for Improving Work Zone Safety The scoring sheets incorporate various criteria such as roadway geometry, work zone duration, queuing, delay time, and impacts for commercial motor vehicles to help determine if deployment of smart work zone technologies at a work zone has the potential to be beneficial. • Traveler information systems, which have been implemented by 78% of DOTs, are the most frequently used smart work zone technology. Read the entire page →

From page 64...

... 66 Use of Smart Work Zone Technologies for Improving Work Zone Safety DOT Basis for Selection as Case Example Smart Work Zone Technologies Already Implemented* Arizona • Southwestern climate • Completion of technical concept study • Development of spreadsheet tools to support implementation • Use of Increase Federal Share Incentive for Innovation 1.