How should standard dungeon traps be handled in Savage Worlds?

For example:

• do characters get a Notice roll if they aren't searching for the trap?

• what should be the mod to spot a trap with Notice?

• if you are searching do you get a bonus?

• does Danger Sense edge allow a second chance if they fail the Notice roll?

• do they get an Agility (or other Trait) roll to get out of the way? If so what should it's mod be?