Hi Jon,
Of those two I'd have to go with the street sign too. I like the idea of the TomTom, but the composition just isn't doing it for me . . . a bit too central and I don't like the way that the map cuts off to the white background. (sorry)
Had a look at your Flickr though and IMO there are a couple of stronger contenders for "Street" there.
The cobbled street is a fascinating shot - really draws you in. Nice angle and lovely perspective to it.
But the one that I absolutely love is that bench shot - both the mono and the colour. I don't know if it was taken with this week's theme in mind, but for me it fits for Street and really is beautifully seen and executed
p.s. Your seascapes and lighthouses are superb

(Just can't think of any way you could crowbar them into street

)