Figure 2-1: Young Drivers in Nighttime Injury Crashes in Chesterfield County, Virginia, 1991-2000, x axis - "month", scale - January 91, January 92, January 93, ... January 00, y axis - "crashed drivers", scale 0 - 45 in increments of 5, data - "Data", "Model".

Figure 2-2: Young Drivers in Nighttime Injury Crashes in Entire State of Vir-ginia, Excluding Chesterfield County, 1991-2000, x axis - "month", scale - January 91, January 92, January 93, ... January 00, y axis - "crashed drivers", scale 0 - 900 in increments of 100, data - "Data", "Model".

Figure 3-1: Quarterly Counts of Nighttime Single-Vehicle Injury Crashes In-volving Young Drivers in Douglas and Sarpy Counties, Nebraska, 1990-1999, x axis - "quarter", scale - 90-Q1, 91-Q1...99-Q1, y axis - "crashes", scale 0 - 70 in increments of 10, data - "Data", "Model". indicates the "start program at 97-Q1.

Figure 4-1: Young Drivers in Nighttime Crashes, Salt Lake County, 1992-1998, x axis - "months", scale - Jan-92, Jul-92, Jan-93, Jul-93,...Jul-98, y axis - "Drivers", scale 0 - 250 in increments of 50 data - "Data", "Model, Program", Model, No Program"". indicates "start program" at Jan-96.

Figure 5-1 Young Drivers in Nighttime Injury Crashes, Travis County, 1993-1998, x axis - "month", scale - Jan-93, Jul-93, Jan-94, Jul-94,...Jul-98, y axis - "Drivers", scale 0 - 70 in increments of 10 data - "Data", "Model". indicates "start program" at Jan-96.

Figure 5-2: Young Drivers in Nighttime Injury Crashes, Entire State Excluding Travis County, 1993-1998, x axis - "month", scale - Jan-93, Jul-93, Jan-94, Jul-94,...Jul-98, y axis - "Drivers", scale 0 - 1200 in increments of 200 data - "Data", "Model".