(a) 
Truck routes.
(1) 
When signs have been placed designating truck routes and when the major thoroughfares have been signed indicating a prohibition of truck traffic, it shall be unlawful for any person to drive or operate any truck, tractor, trailer, bus or other commercial vehicle with a rated carrying capacity in excess of five thousand pounds on, along, or over any streets of the city, or any portion thereof, except the following designated truck routes:
Street
Extent
Preston Road
From the north city limits to the south city limits.
Hillcrest Avenue
From the north city limits to the south city limits.
Lovers Lane
Only from the west city limits east to Preston Road.
Frontage roads, Central Expressway
All of the frontage roads abutting the city limits.
For the purposes of this article, “bus” shall mean a bus or passenger conveyance vehicle designed to carry more than 15 seated passengers.
(2) 
It shall be the duty of the city manager to procure and cause to be erected, placed and maintained on all streets designated in subsection (1) above, and at all intersections on such streets giving access to such streets, signs bearing the inscription "Truck Route" or an international sign indicating the same. On all thoroughfares not a part of the truck route designation signs shall be erected, placed and maintained bearing the inscription "Not A Truck Route," "Trucks, Tractors, Trailers, and Commercial Motor Vehicles Prohibited," or similar words or, in the alternative, the international sign indicating trucks prohibited.
(3) 
It shall not be unlawful for any truck, tractor, trailer, or other commercial vehicle with a rated capacity in excess of 5,000 pounds to enter into and be operated on, along, and over a street or portion of a street not designated a truck route for the purpose of making a delivery or performing a service for a residential or noncommercial property, including Southern Methodist University.
(4) 
Excepted from the provisions of this section are passenger motor buses operated by Dallas Area Rapid Transit, trucks over 5,000 pounds operated by the city for municipal services, trucks operated by any franchised utility company of the city, and vehicles of contractors, subcontractors and suppliers on projects under contract for the city provided such vehicles use a route approved by the public works director or his designee to and from the city project.
(b) 
Load restrictions on University Boulevard.
(1) 
A person commits an offense if he drives or operates a truck, tractor, trailer, bus or other commercial vehicle with a rated carrying capacity in excess of five thousand (5,000) pounds on University Boulevard from Preston Road to Hillcrest Avenue or from Dublin to North Central Expressway (U.S. 75).
(2) 
The chief of police is hereby directed to supervise the installation and maintenance of signs at such location indicating that such vehicles are prohibited.
(3) 
The prohibition contained in the preceding sentences shall not apply to vehicles picking up or delivering passengers, goods or merchandise from or to property abutting University Boulevard from Preston Road to Hillcrest Avenue or from Dublin to North Central Expressway (U.S. 75), nor to vehicles operated by the city for municipal purposes or trucks operated by the franchised utility companies of the city.
(1996 Code, sec. 10.2001; Ordinance 14/029 adopted 11/18/14)
(a) 
Trucks and delivery vehicles with a manufacturer's rated carrying capacity of less than 10,000 pounds and less than three axles ('small' trucks) may load and unload cargo at any time, in Snider Plaza or the alleys abutting Snider Plaza, with the exceptions stated in this section.
(b) 
Trucks and delivery vehicles with a manufacturer's rated carrying capacity of 10,000 pounds or more and three or more axles ('large' trucks) are prohibited in Snider Plaza at any time.
(c) 
Large trucks and delivery vehicles may load and unload cargo in authorized areas in the alley between Snider Plaza and Hillcrest and in the alley between Snider Plaza and Hursey, with the exceptions stated in this section.
(d) 
Exceptions:
(1) 
In the alley between Hursey and Snider Plaza, the portions of the alley behind the following addresses are designated as "no loading/unloading zones": 6611 to 6627 Snider Plaza, 6701 to 6717 Snider Plaza, and 6801 to 6817 Snider Plaza;
(2) 
Loading or unloading of any cargo to or from any truck or vehicle of any size at any location in Snider Plaza or in the alleys abutting Snider Plaza shall be prohibited between the hours of 11:00 a.m. and 2:00 p.m., provided nothing in this subsection shall be construed to obstruct the delivery of mail by the United States Postal Service (USPS) pursuant to 18 U.S.C. § 1701 nor prohibit the loading and unloading of any USPS delivery vehicle, regardless of time and location.
(1996 Code, sec. 10.2002; Ordinance 26-005 adopted 1/6/2026; Ordinance 26-015 adopted 2/17/2026)
It shall be unlawful for any person to operate any tractor, cement mixer, mower, heavy truck, or any other machinery, vehicle or contrivance calculated to injure or destroy or impair the streets, sidewalks, or curbs of the city without first obtaining a permit from the city clerk and making a bond or other good assurance to repair any damage caused by such vehicle.
(1996 Code, sec. 10.2003)
(a) 
Except for repair vehicles of utilities and municipal service vehicles, no concrete truck or any truck exceeding two and one-half (2-1/2) tons (or 5,000 lbs. load capacity) shall use any of the residential alleys of the city. A residential alley is defined as an alley which abuts a residential zoned area (SF-1, SF-2, SF-3, SF-4, SF-A, D-1, D-2, MF-1, MF-2 or MF-3) on both sides.
(b) 
The city manager shall have placed on all major thoroughfares a sign designating the prohibition on the use of said alleys.
(c) 
All projects requiring concrete shall utilize pumping equipment or concrete “buggies.”
(d) 
Swimming pool contractors may, upon approval of the community development department, transport an excavator to the job site, provided specified protection methods as approved by the public works director are used to prevent damage to the area abutting the alley pavement.
(e) 
It shall be unlawful for any person to operate or drive any truck in violation of subsection (a) above.
(1996 Code, sec. 10.2004)
(a) 
Definitions.
Unless specifically defined herein, the terms used in this section have the meanings commonly ascribed to them in the field of air pollution control, unless the context provides otherwise.
Idle.
The operation of an engine in the operating mode where the engine is not engaged in gear, where the engine operates at a speed at the revolutions per minute specified by the engine or vehicle manufacturer for when the accelerator is fully released, and there is no load on the engine.
Motor vehicle.
Any self-propelled device powered by an internal combustion engine and designed to operate with four or more wheels in contact with the ground, in or by which a person or property is or may be transported, and is required to be registered under Texas Transportation Code, section 502.002, excluding vehicles registered under section 502.006(c).
Primary propulsion engine.
A gasoline- or diesel-fueled internal combustion engine attached to a motor vehicle that provides the power to propel the motor vehicle into motion and maintain motion.
(b) 
Time limit.
No person shall cause, suffer, allow, or permit the primary propulsion engine of a motor vehicle to idle for more than five (5) consecutive minutes when the motor vehicle is not in motion.
(c) 
Exemptions.
The provisions of this section do not apply to:
(1) 
A motor vehicle that has a gross vehicle weight rating of 14,000 pounds or less;
(2) 
A motor vehicle having a gross vehicle weight rating greater than 14,000 pounds and that is equipped with a 2008 or subsequent model year heavy-duty diesel engine or liquefied or compressed natural gas engine that has been certified by the United States Environmental Protection Agency or another state environmental agency to emit no more than 30 grams of nitrogen oxides emissions per hour when idling;
(3) 
A motor vehicle being used by the United States military, National Guard, or reserve forces, or as an emergency or law enforcement motor vehicle;
(4) 
The primary propulsion engine of a motor vehicle providing a power source necessary for mechanical operation other than propulsion, passenger compartment heating or air conditioning;
(5) 
The primary propulsion engine of a motor vehicle being operated for maintenance or diagnostic purposes;
(6) 
The primary propulsion engine of a motor vehicle being operated solely to defrost a windshield;
(7) 
The primary propulsion engine of a motor vehicle that is being used to supply heat or air conditioning necessary for passenger comfort/safety in those vehicles intended for commercial or public passenger transportation, or passenger transit operations, in which case idling up to a maximum of thirty (30) minutes is allowed;
(8) 
The primary propulsion engine of a motor vehicle that is being used to supply heat or air conditioning necessary for employee health or safety while the employee is using the vehicle to perform an essential job function related to roadway construction or maintenance;
(9) 
The primary propulsion engine of a motor vehicle being used as airport ground support equipment;
(10) 
The owner of a motor vehicle rented or leased to a person who operates the vehicle and is not employed by the owner;
(11) 
A motor vehicle when idling is necessary to power a heater or air conditioner while a driver is using the vehicle’s sleeper berth for a government-mandated rest period and is not within two miles of a facility offering external heating and air conditioning connections at a time when those connections are available; or
(12) 
The primary propulsion engine of a motor vehicle being used to provide air conditioning or heating necessary for employee health or safety in an armored vehicle while the employee remains inside the vehicle to guard the contents or while the vehicle is being loaded or unloaded.
(d) 
Penalty.
Any person violating any of the provisions of this section shall be deemed guilty of a class C misdemeanor and upon conviction shall be fined in an amount not to exceed the sum of five hundred dollars ($500.00) for each offense.
(1996 Code, sec. 10.2005; Ordinance 13/03 adopted 2/5/13)