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Traffic exposure assessments could misclassify the extent and locations of exposure if traditional recall surveys and … Positioning Systems (GPS) devices to track the diurnal patterns and traffic exposure of 47 residents of communities near the Los … exposures during the 5 h/day on average participants spent in high-traffic areas and about 30 min during the 4 h/day near truck …
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themselves slow traffic. Congestion pricing has also become attractive because governments are strapped for funds, and road …
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This is the age of the train: certainly in Japan and in Europe; probably, soon, on the East Coast. The urgent question is whether California will catch the train, whether indeed it should catch the train, and if so how.  Modern high-speed train travel involves trains that achieve sustained...
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