Purpose: Way v3 is a personal navigation system that calculates a best path, displays a map containing that path, and continuously displays the user's location on that map.

About the System: Version 3 of Way is being designed/developed for/by Nearby. It is envisioned as the third release of a personal navigation system.

Some Contextual Information: The following design documents exist:

• Needs Statement for Version 3

The data team has created the following "network" file that can be used for testing purposes:

The Network for Rockingham County, VA (and relevant cities)


This file was created from the US Census Bureau's TIGER Boundary Files. It is tab-delimited and contains the following eleven fields:

Tail Node
Head Node
Length (in KM)
TIGER Road Type Code (e.g., A11)
Arc ID
Street Prefix (e.g., N)
Street Name
Street Type (e.g., Rd, St, Ave)
Street Suffix (e.g., N)
Address at Tail Node
Address at Head Node

The system must satisfy the following operational requirements:

OR-1 The system must prompt the user to enter their origin adress and destination address when it is started. (see Needs U-1, U-2)

OR-2 The system must be able to find the best path from the user's origin to the user's destination. (see Need S-2)

OR-3 The system must display a thematic map. (see Needs S-1, S-3)

OR-4 The theme must include different colors for the different "major" TIGER road types (i.e., "A1", "A2", "A3" and other). (see Need S-1)

OR-5 The theme must display the best path in "Way blue" (which is usually called "dodgerblue"). (see Need S-3)