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U.S. Postal Service starts nationwide electric vehicle fleet, buying 9,250 EVs

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Re: U.S. Postal Service starts nationwide electric vehicle fleet, buying 9,250 EVs

#411
post #317
post #152

Earlier quoted context omitted.

You need bigger transmission lines to fast charge. That's expensive. You need to charge enough at the site to justify the line costs.

Alternatively, use cheap local storage to "build up" energy for a fast charge.

There is no cheap way to store large amounts of electricity.

EVs are great when in used in the right applications, but trying to make them work for everyone and everything is just going to tarnish the platform.

Re: U.S. Postal Service starts nationwide electric vehicle fleet, buying 9,250 EVs

#412
post #389

Earlier quoted context omitted.

The ebikes aren't dangerous, the cars that hit them are. I think that's an important distinction.

Right, its the cars that are dangerous when people on bikes (ebikes or not) ride on sidewalks.

I think part of the problem is that the danger from cars kind of force the bikes onto the sidewalk. If a biker has a choice between possibly getting hit by a car or possibly hitting a pedestrian, the choice is kind of obvious.

The solution is better infrastructure for bikes. Separate bike lanes from cars and pedestrians, slow the cars down, and improve visibility at conflict points.

Re: U.S. Postal Service starts nationwide electric vehicle fleet, buying 9,250 EVs

#413
post #7

I’ve been wondering what the most repairable vehicle might look like, and I guess the USPS already put a lot of brain power into that problem. I presume this is ugly because it’s both purpose built and highly repairable.

Repairability isn't one of the top design requirements. The previous postal truck was the Grumman LLV (https://en.wikipedia.org/wiki/Grumman_LLV). Check out this article on the design requirements and testing procedures: https://postalmuseum.si.edu/collections/object-spotlight/lon...

Because it was for (non-military) government use, it naturally sucked. No air con (but you got a tiny fan!), a dinky heater that didn't really help, the chassis of a Chevy S-10, a 3-speed auto, and the engine from a Fiero. But the parts were easy to source and cheap.

Re: U.S. Postal Service starts nationwide electric vehicle fleet, buying 9,250 EVs

#415

Earlier quoted context omitted.

Seriously, take a moment to calculate how much stopping at a gas station takes out of a trip. For example, when I have to get off of a freeway in order to get gas, I usually have to navigate an intersection and might have to sit through a traffic light. In places I used to live, getting gas meant turning left instead of going right on red. Then leaving the gas station meant sitting through another stop light or two.…

Yes, I’m sure there will be usps charging stations on every block in the near future.

It doesn't need to be USPS specific, but that is an interesting thought. Many new neighborhoods have spots for postal workers to park and distribute the mail on foot. This is typically faster in my experience. I don't think it's a big leap to also have those dedicated spots have chargers.

Re: U.S. Postal Service starts nationwide electric vehicle fleet, buying 9,250 EVs

#416

Earlier quoted context omitted.

I really love the concept of ebikes, for an urban/suburban area it's a viable alternative to a car. This issue as I see is that the regulations just aren't there and people are ebikes ride like complete idiots. Pre-ebike if you were riding at 25mph chances were you were a pretty good cyclist and had good control over your bike, now anybody that can find an ebike is zipping along at 25mph. This wouldn't be a problem i…

As an avid cyclist it really bothers me when any cyclist, e-bike or not, violates the rules of the road. It's so important we follow them. Much of the hatred received is because of bikers doing things they are not supposed to giving us a bad reputation.

Where I live, it’s pretty common for non-cyclists, and even cyclists sometimes, to have no idea that the rules for pedestrians, cars, and cyclists are all different. Car drivers frequently believe that cyclists have to obey they same rules as cars, such as stopping at a stop sign, and get upset when cyclists don’t do this, without realizing that it’s the law; cars are required to stop and bicycles are not. (This is of course not true everywhere, but is where I live.)

I don’t know that there’s all that much ‘hatred’, my road rides are by and large peaceful, but the cars that do seem upset by cyclists tend to be unwilling to respect bikes that are following the rules of the road; they don’t like bikes using a full lane and they will often break the rules of the road to pass a cyclist unreasonably quickly and unreasonably close.

One thing I’ve noticed about e-bikes is that they are increasing the number of cyclists considerably. I feel like this is very very good for cyclists, it’s making bikes much more present on the road, increasing the city’s interest in maintaining bike paths, normalizing bikes in traffic for powered vehicle drivers, etc.

Re: U.S. Postal Service starts nationwide electric vehicle fleet, buying 9,250 EVs

#417
post #389
post #381

Earlier quoted context omitted.

Around me (Boston USA area) there are ebike grocery deliveries (Getir) wizzing down every street. It's a great idea, although clearly the incentives are set up so that the delivery guys need to complete as many orders as possible, the predictable result of which is that these kids are driving dangerously the wrong was down one-way streets and cutting lights.

The ebikes aren't dangerous, the cars that hit them are. I think that's an important distinction.

E-bikes are absolutely dangerous to the pedestrians they hit.

I don't much like cars, but cars aren't driving on the sidewalks where I am.

Re: U.S. Postal Service starts nationwide electric vehicle fleet, buying 9,250 EVs

#418

Earlier quoted context omitted.

Right, its the cars that are dangerous when people on bikes (ebikes or not) ride on sidewalks.

I think part of the problem is that the danger from cars kind of force the bikes onto the sidewalk. If a biker has a choice between possibly getting hit by a car or possibly hitting a pedestrian, the choice is kind of obvious. The solution is better infrastructure for bikes. Separate bike lanes from cars and pedestrians, slow the cars down, and improve visibility at conflict points.

> If a biker has a choice between possibly getting hit by a car or possibly hitting a pedestrian, the choice is kind of obvious.

I don't think that's true, though. The alternative is not "endanger pedestrians", the alternative is "walk". A biker has a choice to not bike. And that's what I do; I walk when I'm in Boston, because I don't think urban biking is safe enough for me to make that choice.

Like, yes, better bike infrastructure is a good idea and separated bike lanes is something that I absolutely support, but biking is a choice, and right now a lot of people on e-bikes (not so much regular bikes, to be honest) make me feel unsafe to walk in places that they tend to congregate.

Re: U.S. Postal Service starts nationwide electric vehicle fleet, buying 9,250 EVs

#419
post #230

Earlier quoted context omitted.

I know right. It’s one of those mysteries. Maybe they thought it saved gas, like in the old days when great grandpa would deliberately stop the engine at intersections. (Which by the way is common now in some modern cars and startles me.)

Automatic start-stop features do save a meaningful amount of fuel. This article [1] cites about 8% in heavy traffic. [1] https://www.roadandtrack.com/new-cars/car-technology/a229943...

Emissions from restarting can be higher or lower than idling [1]

• Idling for more than 10 seconds uses more fuel and emits more CO2 than engine restarting.

• Idling fuel usage varies from 0.2 to 0.5 gal/h for passenger vehicles across a range of sizes, and increased with idling speed.

• NOx and THC emissions from restarting are larger, but at least an order of magnitude lower than those from starting a cold engine.

• For short stops, it makes sense to turn the vehicle off in order to minimize fuel use and CO2 emissions. At least for the conditions evaluated in this work, the penalty in terms of criteria pollutant emissions

[1] https://afdc.energy.gov/files/u/publication/which_is_greener...

Re: U.S. Postal Service starts nationwide electric vehicle fleet, buying 9,250 EVs

#420
post #92

Earlier quoted context omitted.

> electricity prices per mile of transport per ton were about 25% that of fossil fuel prices per mile of transport per ton In shipping and logistics, time is money. Fuel can be dispensed in the US at a maximum of 10 gal/minute. Factor that against the largest charger you can find and see why the single cost difference doesn't matter yet. > They should really move all long-haul trucking to electric as well Reduced cap…

> In shipping and logistics, time is money. Fuel can be dispensed in the US at a maximum of 10 gal/minute. Factor that against the largest charger you can find and see why the single cost difference doesn't matter yet. You charge the mail trucks overnight, when they aren't being driven. I don't know about you, but I've never seen a postman out in the evening or nighttime. I also don't know about you, but I don't stan…

I know it's been talked about a lot and never really implemented, but if you've got a fleet of identical vehicles, then doing battery swaps should be possible and practical.
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