rolling vs full stop

[jojogunn]

Years ago, I read that a vehicle with any momentum will use 90% less fuel to get going.
Are there any studies showing how much fuel is consumed from sitting at a light vs having some momentum when it changes?
One the intersections on my commute has a slight downhill grade, and I can row the shifter between neutral and drive to barely close the gap twixt me and the vehicle in front of me until our turn to go. How slow until this is not helping?

[redpoint5]

That's too much of a simplification.

P=mv - that is, energy equals mass times velocity. The more speed you can preserve, the more efficient it is. If you're going 1 MPH as you roll through the intersection, you haven't saved much energy at all.

Slowing well before reaching a stop to preserve momentum is one of the driving tips to maximize fuel economy.

[oil pan 4]

How much does a ticket run for "running a stop sign" cost?

[slowmover]

Bad habits cost far more than dollars.

1). Safety

2). Longevity

3). Economy

Keep the order.

.

[oil pan 4]

I have been to California multiple times, they like to roll through stop signs.
But their all right compared to MA drivers, to them a stop sign is a suggestion.

[Piotrsko]

Originally Posted by oil pan 4

How much does a ticket run for "running a stop sign" cost?

Up to $100 depending on where and citing officer descriptions

[redpoint5]

It's like $300 here. I was cited about 15 years ago and back then it was something like $280. The judge knocks a bit off the ticket just for pleading not guilty, showing up to the court date, and then simply being truthful that you were guilty. I've had all of my many tickets (none in the last 10 years) reduced by doing this.

[slowmover]

It’s not the cost of the ticket, per se. It’s in being moved to a higher risk category by an insurer, thus higher long-term cost. A slew of tickets is an accurate predictor about emotional state. Which is the heart of “ability”.

Credit Score & Insurable Risk: Your Slave Collar

Every monkey can pilot a car. All over the planet. Only a matter of degree in different skill level, and that’s not fundamental.

Driving involves habitual choices. Skill isn’t off-setting. The important decisions about driving are all made before the key is turned.

Have the habit of encroaching the stop line at a four-way? That one is behind the curb line doesn’t change the fact one is now IN the intersection. It’s not a technicality.

Same for crossing a solid white stripe. It’s not there because the Highway Department had extra paint that day.

Failure to control one’s self.

Losing the use of the vehicle should be the determinant. There are so few examples of where that is a desirable outcome versus one worse that it’s an easy way to make choices. Tell yourself you’ll be walking the rest of your life.

One comes to a complete stop ten feet before the stop line. Not five. Why that is so is worth your while in investigating. Extrapolating. Same for the highway lanes merge zone.

The loss problem extends downwards to the life of vehicle components. “I’ll never be able to replace these tires. Tires are no longer available”. Etc.

As always the irony is that trips aren’t any longer. Discipline & Duration have a new relationship.

As economy is the premise hereabouts, it’s vehicle use that matters most past vehicle spec. That use is premised on habit. Not skill. Not aero bandaids.

.

[Frank Lee]

I roll through when I've determined the risk of collision or prosecution are nil.
If a tree falls in the woods and nobody is there to hear it, does it still make noise?

[fusion210]

I stop at all the stops. What savings in money or gas is pretty minute as in small.