From the reference material...

From the project Traffic Study, used to generate the estimated Average Daily Trips:
From the City of San Diego 2003 Trip Generation Manual, referenced by the Traffic Study as the source of the above data:

Did they choose a "worst possible scenario" for a restaurant type use?

They chose to use 150 ADTs for a Supermarket:
When they could have chosen 500 ADTs for a Convenience Market:

Did they choose a "worst possible scenario" for a market type use?

They chose to use 40 ADTs for Specialty Retail when they could have used 90 ADTs for a Drugstore:

Did they choose a "worst possible scenario" for a ANY use?

If they had, the number of Average Daily Trips generated by this project would be:

And from the experts, for the benefit of Labib Qasem:

Tip#47 Short cuts are trouble.

It is illegal to drive through parking lots and private property to avoid traffic signals at intersections. This creates a danger for pedestrians in the parking lots. Respect others. Don’t “shortcut” through residential areas. Most residential streets are not designed for high traffic volumes. Hazards in residential areas are children playing, people walking, etc. and this raises risks to others. -  52 Traffic Safety Tips, Kingsport Police Department Community Relations Office, Kingsport, Tennessee

Stay on Major Roads

Some motorists drive through residential neighborhoods because it is a short-cut or because it allows them to avoid traffic signals. This behavior negatively impacts residents by increasing neighborhood traffic. Be courteous and use major streets whenever possible. - City of San Leandro Engineering and Transportation Department, Driving: Best Practices

A positive parameter indicates, all other influences remaining fixed, that the opinion reflects something of greater importance and/or greater likelihood of it being delivered. For example, given that the mean estimate of the random parameter for slowed downtime was negative and “avoid traffic lights” had a positive parameter estimate, the presence of a strong positive effect reduces the marginal (dis)utility of slowed down time. - Respondent Behavior in Discrete Choice Modeling with a Focus on the Valuation of Travel Time Savings, JOURNAL OF TRANSPORTATION AND STATISTICS, U.S. Department of Transportation, Research and Innovative Technology Administration