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Cascade Crossroads - YouTube
Video showing the extensive ecological and environmental improvements in the I-90 Snoqualmie Pass East project.
wa  transportation  ecology 
6 hours ago by axodys
After 61 Years, Interstate 95 Is Almost Complete - The Atlantic
State transportation officials agreed to christen the major interstates using the same scheme they used for the U.S. routes decades earlier: East-west highways would receive even numbers, while north-south highways would be odd. But U.S. routes started counting from the northeast, so to avoid confusion, the officials numbered interstates starting in the southwest. Thus, Interstate 95 runs north-south on the Atlantic Seaboard, roughly mirroring the old U.S. Route 1. (This is also why I-5 mirrors U.S. 101 along the Pacific.)

transportation  highways  us  history  infrastructure 
2 days ago by madamim
A global map of travel time to cities to assess inequalities in accessibility in 2015 | Nature
Here we develop and validate a map that quantifies travel time to cities for 2015 at a spatial resolution of approximately one by one kilometre by integrating ten global-scale surfaces that characterize factors affecting human movement rates and 13,840 high-density urban centres within an established geospatial-modelling framework. Our results highlight disparities in accessibility relative to wealth as 50.9% of individuals living in low-income settings (concentrated in sub-Saharan Africa) reside within an hour of a city compared to 90.7% of individuals in high-income settings. By further triangulating this map against socioeconomic datasets, we demonstrate how access to urban centres stratifies the economic, educational, and health status of humanity.
inequality  mapping  cities  transportation 
2 days ago by madamim
Sunken oil tanker threatens fisheries and marine life in East China Sea
More than 100,000 metric tons of oil carried by an Iranian tanker that sunk on Jan. 14 in the East China Sea could endanger nearby fisheries and marine life immediately and for years to come, researchers say. But with many details of the wreck still unknown, it is too early to predict the effects with any certainty.
The tanker Sanchi was carrying 136,000 metric tons of ultralight crude oil called condensate when it collided with a Chinese cargo ship on Jan. 6. The Sanchi burned until it sank eight days later in 115 meters of water. All 32 crew members of the tanker are presumed dead.
Condensate is a volatile type of oil similar to gasoline that is used to make jet fuel and other products. It is highly toxic to marine life. To transport the condensate payload, the Sanchi was likely running on bunker fuel: a heavy, tarlike, viscous substance that is less toxic than condensate but much more persistent in the environment.
Authorities don’t know how much of the ship’s cargo and fuel burned up in the fire or evaporated or how much is now leaking into surrounding waters.
china  transportation  release  petroleum  enviromental 
3 days ago by dchas

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