for communication between s and between s and other oT devices located outside the vehicle on poles, streetlights, buildings, or other infrastructure on roadway systems. Bus bus and bus communication is now available for vehicle synchroni ation and real-time schedule messaging. Signal prioriti ation for transit vehicles and s when appropriate should be considered. t multimodal intersections, pedestrian and micromobility vehicles are candidates for dedicated signali ation se uencing and, perhaps, prioriti ation this is an e uitable solution for disabled persons.
ENVIRONMENTAL SUSTAINABILITY AND A CHANGING CLIMATE By , climate change in ennsylvania is anticipated to result in higher temperatures, more days of over , and a conse uential increase in rainfall. rgonne National aboratory s climate models anticipate a maximum increase of annual rainfall a little over 6 from present day values.1 Even a doubling of rainfall prediction in some parts of the state means an increase of - of annual rainfall every years. f correct, today s th percentile design standards, based on s mapping of ood-prone locations, are already out of date. Just as buildings are coming under more climate and energy scrutiny, including stringent onsite stormwater retention and energy codes that stress efficient use, transportation systems should be planning and implementing environmental design best practices. couple of examples illustrate the point greater use of s will necessitate the fast removal of rainwater and snow from corridor roadways because surface retention distorts the surface geometry causing occlusion issues. ost asphalt roadways are designed for a - to 5-year life. Not considering a healthier infrastructure resilience redundancy factor beyond that lifespan may be short-sited. As environmental information becomes more available to the public, communities are also becoming more attuned to environmentally responsible design and not expecting to become burdened with design decisions not within their control. or example, where possible stormwater retention should be achieved within the right-of-way and not diverted to local systems.
EQUITY AND OTHER SOCIAL CHALLENGES The multimodal use of roadways as policy is also an e uity issue. ultimodal policy recogni es that pedestrians and self-powered vehicles have ust as much right to use the roadway as motori ed vehicles, which necessitates e uali ing priorities when instigating design improvements.
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2
models predict that the amount of rain falling during the wettest of days per year could potentially double in some parts of the state by the end of the century. Thomas all, rgonne National aboratories, . See Chapter for a condensed review of previous work. ittsburgh s of annual rainfall used as the basis for the calculation.
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