Original sentence: Initially there were questions about the viability of the project; it was proposed that there would be 800 trucks/day [no cite], but more recent data has brought that number down to 800 trucks/week (in contrast to Laredo, Texas, which handles 9,000 trucks/day)[no cite]
Edited sentence: Initially, there were questions about the viability of the project; it was proposed that there would be 800 trucks/day [no cite], but more recent data has brought that number down to 800 trucks/week (in contrast to Laredo, Texas, which handles 9,000 trucks/day)[no cite]