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A side question to this one. Is there any guide-set or set of rules to judge which information is more important than other when designing a map-like mobile application?

When using Google Maps in driving guidance mode, I:

  • see a totally useless (from my perspective) information -- street name -- nearly all the time,
  • don't see an absolutely crucial information -- ETA -- until the very end.

Here are some examples.

  1. 190 meters till possible turn and no ETA:

enter image description here

  1. Less than 150 meters and still nothing:

enter image description here

  1. Only forty meters for a decision and still no ETA:

enter image description here enter image description here

  1. Last "capture", ETA appears when you're already in the process of turning:

enter image description here

Either I am missing something totally obvious (and would really appreciate an explanation here) or the whole ETA functionality has a purely wrong design. From the decision-making perspective I don't need street name at all, but I do need ETA on all the alternatives.

In mobile Google Maps this is made exactly opposite -- unimportant, useless information (street name) very often covers most important one (ETA).

Is there any specific reasoning, guide or rule set:

  • in general -- to decide which information is more/less important and thus must be shown above/beyond some other information in mobile apps design,
  • in this particular example -- that justify current mobile Google Maps design.

closed as primarily opinion-based by Lucian, Scott, Luciano, GerardFalla, Manly Aug 9 at 12:50

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

  • Just so you know, Google maps is showing you the ETA. In this image, red = ETA, blue = distance remaining, green = time remaining. – Manly Aug 9 at 12:50
  • @Manly This is ETA of CURRENT road. The question asks about ETAs for all the alternative ways, Google Maps suggests. But, since the question is found off-topic then there's no point in taking this discussion any further. – trejder Aug 17 at 7:25