Data maps present thematic information, such as average household income. Inc. The data available will differ by country, but generally include population, households, population in group quarters, average household size, average household income, median age of total population, and population by various age ranges. Data are avail-able at a geographic scale of postal code, metro area, city, state, or province. Overall, MapPoint 2001 has a more refined and stable feel than its predecessor. The user can choose between fastest route, shortest route, or preferred roads.
Preferred roads bias the routing toward particular street types.
This can be handy if one prefers scenic drives or high-speed state highways to Interstates or limited access highways. Figure 1 shows a route map from Vail, Colorado, to a restaurant in Leadville, Colorado. Figure 2 shows a 30-mile radial search around Vail. However, from the radial search, MapPoint 2001 indicates the same restaurant described in Figure 1 and Table 1 as being only 26.5 miles from Vail, even though the driving distance was calculated as 42.3 miles. Regrettably, there is no option to query by proximity using estimated drive time or road distance measurements, even though MapPoint 2001 includes these algorithms.