Every Concord neighborhood, plus the neighbors.

The square, the four streets around it, and the shops and restaurants on Salvio and Grant with apartments on the floors above. Market stalls on Tuesday and Thursday, the BART station two blocks off, tables outside until late. The van sits at the plaza, so sixteen minutes is the shortest run on the map.

Monument Boulevard and Detroit Avenue, with the fourplexes and two-story garden blocks on the streets between them. Buzzer panels at the courtyard gate, unit numbers that ignore the street, carports at the rear, and the largest share of renters in the city. Eighteen minutes from the plaza, and a lot of this work lands after six.

The long run of tract streets either side of Ygnacio Valley Road, laid out in the middle sixties and barely altered since. Single-story houses, wide driveways, garage side doors, aluminum sliders onto the back patio, and Mount Diablo at the end of most of them. Twenty-three minutes from the plaza.

The newer streets climbing east and north toward the hills, from the seventies through the nineties and later. Two-story houses on cut lots, side gates onto the yard, detached garages, long driveways, and gates that open on an operator. Twenty-six minutes from the plaza, the longest run inside the city.

The oldest of the postwar streets, flat and close-set, with small lots, garages facing the road, screen doors on the front and long-owned houses behind them. Nineteen minutes from the plaza, and most of this work happens between nine in the morning and the school run.

The hillside streets north-west of downtown, built at the end of the fifties and into the sixties. Split-level houses stepping up from the curb, carports and tuck-under garages, steps to a front door a half level above the street, and views back over the valley. Twenty-four minutes from the plaza.

The working east side of the city. Warehouses, machine shops, distributors and fenced yards along Bates Avenue, Solano Way and Port Chicago Highway, with steel doors in steel frames, chains on the roll-ups and a bar on every rear wall. Twenty-three minutes from the plaza, and a good share of these calls come in the dark.

The streets running north along Willow Pass Road toward the old Naval Weapons Station, with the North Concord/Martinez BART station, its park-and-ride lots and the frontage roads either side of Highway 242. Twenty-three minutes from the plaza, and much of the work here happens in a parking lot.