FIGURE 4 - Gap Distribution,
A. Short-Term Work Zone,
Gap (seconds),Relative Frequency
0.50,1.42%
0.75,4.11%
1.00,9.14%
1.25,11.17%
1.50,13.30%
1.75,14.34%
2.00,13.30%
2.25,11.17%
2.50,8.37%
2.75,5.47%
3.00,4.11%
3.25,2.35%
3.50,1.09%
3.75,0.66%
4.00,0.00%

B. Long-Term Work Zone,
Gap (seconds),Relative Frequency
0.50,2.42%
0.75,6.90%
1.00,14.09%
1.25,15.50%
1.50,15.53%
1.75,12.69%
2.00,11.32%
2.25,9.47%
2.50,5.49%
2.75,3.14%
3.00,2.24%
3.25,0.99%
3.50,0.15%
3.75,0.09%
4.00,0.00%