4 ms·

One problem being (badly) addressed in the images, in my unskilled opinion, is that is it possible to finish the transaction without replacing the nozzle in the

One problem being (badly) addressed in the images, in my unskilled opinion, is that is it possible to finish the transaction without replacing the nozzle in the holster (and then, presumably, drive away with the nozzle still in the car). While no kind of UI expert, I do believe that good UI should guide the user into a correct flow of actions and make it difficult to make a mistake. I have a hazy memory that in the field of ATM design, the reason you don't get your money before you take your card back is to ensure that people take their card back; because people were focused on getting money, they would leave the card behind as soon as the money was in their hand. The solution was to make getting the card back a necessary step towards getting the money. The analogy doesn't quite hold; people want the fuel, at the point they have the fuel (and are effectively done getting what they want) the nozzle is still in the car, but is there a way to make finishing the transaction more difficult without replacing the nozzle in the holster? Perhaps if paying by card, the machine could hold onto the card until the nozzle is replaced, or in some other way make payment impossible without replacing the nozzle. That would work where I am, but for all I know there are systems out there in which people complete payment in advance, get their card back, and are then dispensed a pre-agreed amount of fuel.

deleted 7y ago
[deleted]
netsharc 7y ago
In motor racing there's a guy holding a sign telling the driver to wait (and to punch it when he lifts the sign up), called the "lollypop man": https://i2.wp.com/f1-grandprix.com/wp-content/uploads/2013/10/wally_1342526a.jpg https://i2.wp.com/f1-grandprix.com/wp-content/uploads/2013/1... They could have a mechanical version of this, although the placement would have to be figured out, cars have different dimensions and park differently at the pump. A rental I had required you to use the ignition key to open the inner fuel cap, and you left the key hanging from that cap as you refuel This makes sure you turn off the engine, and it also makes sure you won't leave without replacing the fuel cap (and obviously that can only be done without the pump nozzle in the way).
- GordonS 7y ago
  They used to have this in Formula 1, but still the driver would sometimes race off before the fuel nozzle was out. After a series of incidents, a couple nearly really serious, Formula 1 scrapped refuelling mid-race - the cars now start with enough fuel to finish the race.
  - nradov 7y ago
    Nascar and other racing series seem to manage refueling safely enough.

deleted 7y ago

[deleted]

netsharc 7y ago

In motor racing there's a guy holding a sign telling the driver to wait (and to punch it when he lifts the sign up), called the "lollypop man": https://i2.wp.com/f1-grandprix.com/wp-content/uploads/2013/10/wally_1342526a.jpg https://i2.wp.com/f1-grandprix.com/wp-content/uploads/2013/1... They could have a mechanical version of this, although the placement would have to be figured out, cars have different dimensions and park differently at the pump. A rental I had required you to use the ignition key to open the inner fuel cap, and you left the key hanging from that cap as you refuel This makes sure you turn off the engine, and it also makes sure you won't leave without replacing the fuel cap (and obviously that can only be done without the pump nozzle in the way).

GordonS 7y ago
They used to have this in Formula 1, but still the driver would sometimes race off before the fuel nozzle was out. After a series of incidents, a couple nearly really serious, Formula 1 scrapped refuelling mid-race - the cars now start with enough fuel to finish the race.
- nradov 7y ago
  Nascar and other racing series seem to manage refueling safely enough.