Beginning of Queue: | Customs Booth: | Inspection Area: |
License plate | License plate | License plate |
Time of arrival at queue | Time of arrival at booth | Manufacturer of truck |
Assignment of ID number | ID number | Country of manufacture |
Mileage (miles or km.) | Horsepower | |
Truck size (axles) | Loaded/Unloaded weight | |
Vintage | Departure and destination | |
Trucking Company | ||
Fuel and purchase location | ||
Border crossings today |
Collection Locations 1 & 2 |
Collection Location 3 | ||||
Surveyed Trucks |
Average Trucks Per Weekday |
Inspected Trucks |
Inspected Trucks as % of Surveyed Trucks | ||
Mondays | 2/10 | 423 |
423 |
38 |
9.0 |
Tuesdays | 2/11 | 532 |
492 |
41 |
7.7 |
2/18 | 452 |
54 |
11.9 | ||
Wednesdays | 2/12 | 490 |
517 |
46 |
9.4 |
2/19 | 544 |
46 |
8.5 | ||
Thursdays | 2/13 | 535 |
512 |
42 |
7.9 |
2/20 | 488 |
40 |
8.2 | ||
Fridays | 2/14 | 472 |
472 |
44 |
9.3 |
Total |
3,946 |
351 |
8.9 |
San Diego County | North of San Diego | Total | |
Tijuana/Maquiladoras | 70.1% | 19.4% | 89.% |
South of Tijuana | 5.6% | 4.9% | 10.4% |
Total | 75.7% | 24.3% | 100.0% |
Time of Crossing | Number of Trucks | % Daily Crossings |
Before 9 a.m. | 357 |
21.4 |
9-10 a.m. | 132 |
7.9 |
10-11 a.m. | 132 |
7.9 |
11-12 p.m. | 130 |
7.8 |
12-1 p.m. | 143 |
8.6 |
1-2 p.m. | 159 |
9.5 |
2-3 p.m. | 145 |
8.7 |
3-4 p.m. | 130 |
7.8 |
4-5 p.m. | 183 |
11.0 |
After 5 p.m. | 155 |
9.3 |
Full day | 1,666 |
100.0 |
Source: Caltrans District 11, Transportation Planning Branch |
Arrival | Monday | Tuesday | Wednes. | Thursday | Friday | All Days |
9-10 a.m. | 1.50 | 2.40 | 16.22 | 3.34 | 6.25 | 5.48 |
10-11 a.m. | 1.43 | 4.14 | 35.10 | 2.35 | 1.74 | 11.35 |
11-12 p.m. | 1.30 | 6.03 | 11.44 | 1.55 | 0.84 | 5.51 |
12-1 p.m. | 1.29 | 13.59 | 12.30 | 2.10 | 2.81 | 7.68 |
1-2 p.m. | 1.74 | 14.78 | 27.11 | 3.50 | 1.70 | 14.79 |
2-3 p.m. | 2.03 | 17.73 | 26.03 | 0.72 | 1.45 | 13.96 |
3-4 p.m. | 3.09 | 23.97 | 25.94 | 10.20 | 8.97 | 17.98 |
4-5 p.m. | 1.15 | 2.50 | 9.00 | 6.44 | 6.58 | 5.38 |
HC | CO | NOx | |
Light-duty gasoline trucks (LDGT): | |||
- Morning (60-75F) | 32.10 | 429.38 | 7.18 |
- Afternoon (70-90F) | 32.14 | 454.28 | 6.98 |
Heavy-duty gasoline trucks (HDGT): | |||
- Morning (60-75F) | 62.10 | 459.84 | 5.46 |
- Afternoon (70-90F) | 65.10 | 569.87 | 5.03 |
Light-duty diesel trucks (LDDT) | 5.58 | 15.85 | 7.93 |
Heavy-duty diesel trucks (HDDT) | 21.88 | 129.08 | 106.00 |
Total HC | Total CO | Total NOx | PM10 | |
09:00-10:00 | 371.55 | 2,485.89 | 968.32 | 40.73 |
10:00-11:00 | 769.54 | 5,148.69 | 2,005.55 | 84.36 |
11:00-12:00 | 367.92 | 2,461.63 | 958.87 | 40.33 |
12:00-13:00 | 576.47 | 4,234.26 | 1,468.32 | 61.84 |
13:00-14:00 | 1,234.38 | 9,066.62 | 3,144.05 | 132.42 |
14:00-15:00 | 1,062.52 | 7,804.29 | 2,706.31 | 113.98 |
15:00-16:00 | 1,226.92 | 9,011.84 | 3,125.05 | 131.62 |
16:00-17:00 | 516.79 | 3,795.89 | 1,316.31 | 55.44 |
Total (grams) | 6126.09 | 44009.11 | 15692.78 | 660.72 |
Total (tons) | 0.007 | 0.048 | 0.017 | 0.001 |
(Tons per day) | ||||||
VOC |
NOx |
CO |
PM10 |
Number |
VMT/Day | |
of trucks |
||||||
All Vehicles | 130 |
160 |
750 |
5 |
2,200,000 |
65,000,000 |
Diesel Trucks | 6 |
40 |
30 |
4 |
17,000 |
2,500,000 |
Trucks as | ||||||
% of Total | 4.6% |
25% |
4% |
80% |
0.8% |
4% |
Source: San Diego Air Pollution Control District |