Читать книгу Geography For Dummies - Jerry T. Mitchell - Страница 48

To get started, look at Figure 3-1 and familiarize yourself with Gridville. In particular, note the following:

 The roads are aligned with the cardinal directions — that is, they run north-south or east-west. The result is a grid pattern of north-south roads that intersect east-west roads at right angles. So, getting right with Gridville means getting used to a city that is all right angles and nothing but right angles. Thus, I’ll understand if this town leaves you feeling a little square.

  North is toward the top of the map; south is toward the bottom; east is toward the right; and west is toward the left. This is a near-universal rule in map-making, but you should always carefully examine the map you are looking at and confirm which way is which.

 Gridville has a principal east-west road named Equator Boulevard, and a principal north-south road named Prime Meridian Way. The two roads cross in the middle of Gridville.

 Every other road in Gridville has a name that refers to its location relative to those two roads. Thus, streets are numbered consecutively north and south of Equator Boulevard. Avenues are numbered consecutively east and west of Prime Meridian Way.

 A big dot and a letter mark two intersections. I’ll refer to these shortly.