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Page 14 of https://www.dropbox.com/s/zwznes9jin41i5k/Feasibility%20of%20Harbor-wide%20Barriers%20Report.pdf?dl=0 near the bottom right corner claims they are assuming that present shipping should be preserved. I think preserving access to Conley Terminal and Flynn Cruiseport (formerly known as...

A one lane exit ramp through the park to North Point Blvd would probably help.

That 400kWh of battery pack takes up about 90 cubic feet (when estimating based on Model S pack size; using the larger model 3 cells and changing the overall shape might reduce the size). http://www.evwest.com/catalog/product_info.php?products_id=476 lists one Tesla Model S motor at about 5.9...

Also: 34 - 16 - D St - TWT - airport loop 18 - D St - TWT - airport loop Late night 57 extended to the airport loop Also, some variants from Andrew Station to the Ted Williams Tunnel could be followed; perhaps the Longwood to airport bus could go from Andrew Station along Dorchester St to...

Also, how many strokes happen in Charlestown during a 2 to 3 year bridge closure, and how much does keeping the bridge open to ambulances cost? It's quite possible that saving one or two Charlestown stroke patients is using transportation safety funding that could be saving a half dozen or more...

Google Maps seems to think ``Charlestown'' (it picks a point a bit beyond the Bunker Hill Monument) to MGH Fruit St Boston is 12 minutes right now via either the N Washington St Bridge or the Leverett Circle Connector. We might need a congestion toll to get sane travel times on the Leverett...

At https://teslamotorsclub.com/tmc/threads/railroad-trucks-with-batteries.115796/ I explore this in detail; 6' long x 4' wide x 30" tall inside the wheels, plus 6' long x 1' wide x 30" tall on the outside on each side for each train axle would have about the same total volume as 4 Tesla Model S...

Maybe Logan could use electric vehicles to tow airplanes? https://electrek.co/2018/05/15/tesla-model-x-electric-towing-record-qantas-boeing-787-9-dreamliner/

I've read claims that the actual reason coal has been so slow to be phased out in Germany is that Angela Merkel has been more effective than Trump at preserving coal jobs for the sake of preserving jobs.

What exactly prevented building parking protected bike lanes there, and what's the width of the street from curb to curb there?

What percentage of the MARC Penn Line trains are using overhead power vs diesel these days, and how easy has MARC found Amtrak to be to work with at getting reasonable access to the overhead power at a reasonable price?

http://ir.tesla.com/secfiling.cfm?filingID=1564590-18-10306&CIK=1318605 is focused on an expectation of profitability in Q3 and Q4: I'm curious how the payments to CRRC for the Red and Orange Line cars are structured. Has CRRC been losing money so far on that order because they've built the...

That's not what I've been suggesting. Instead, build brand new powered trucks where the batteries are built into the trucks, lift the existing coaches off their unpowered trucks, and insert the new trucks that have the motors and batteries under the coaches and set the coaches back down onto...

If we're trying to optimize 2030 reliability, one thing to think about is that recovering from fallen trees is faster when you don't have overhead wire. It's probably a minor thing, though. We really should be focused on minimizing operating costs + interest and principal payments on capital...

Given that https://reneweconomy.com.au/the-stunning-numbers-behind-success-of-tesla-big-battery-63917/ says ``The Tesla big battery in South Australia has already taken a 55 per cent share in the state’s frequency and ancillary services market'', is the Tesla PowerPack technology sufficiently...

Hydrogen is totally impractical in many ways. The compressors are probably 10x-100x more expensive than DC fast charge stations for a given amount of throughput; if you make hydrogen from electrolysis of water it's less than half as energy efficient as just using batteries (although you can...

All automobile production has human beings involved in the final assembly, in a manner that might count as hand assembly except that maybe they have power tools in their hands. And apparently Tesla did switch the problematic battery module assembly step from manual assembly to unsatisfying...

Re: Third Rail On the Old Colony Lines through Quincy, there is third rail on the adjacent Red Line tracks with no overhead power. Third rail often uses voltages in the 600V to 750V range. All of the MBTA subway power for third rail, and overhead wire for both subway and trolleybus, is 600V...

During one recent summer, one of the Millstone units was actually not running during the actual peak hour of the year because two of their four circulation pumps were out of commission, and then less than a week later, Pilgrim wasn't running at full power because Cape Cod bay where they draw...

Re: Bike Lanes in Mt Auburn Bus Priority Project Would narrowing the two typically 11' automobile travel lanes from Holworthy St to Norman St to 10' each be practical? That would free up 2' that could be used as a buffer between the parking and bike lane, and in several places it looks like...