Putting the rail line above city streets on elevated viaduct structures can eliminate some of the conflicts with existing traffic flow and ultimately allow for more efficient trips for riders. Dick says these options not only impact cost and efficiency of construction, but ultimately the experience for riders and other drivers on the road. “The difficulty of looking into the future and forecasting things: it’s just a real challenge for engineers across all types of projects.”įor example, project developers must decide where to build the rail at-grade, meaning surface level with existing traffic, or where to build in “grade separation” by either elevating the trains or taking the system underground. You know, what is the expected cost going to be in the future?” he said. You have to sort of estimate, based upon typical average costs for other systems. “When you look at initially estimating the cost for a system like this, you’re dealing with sometimes nothing more than a line on the map.
0 Comments
Leave a Reply. |