The Traffic Engineering Office has the following authorities:
               1.  Study, analyze, specify and improve traffic engineering standard as well as road equipment standard. Survey and examine traffic system, merging road, diverging road, directions, lanes, U-turns, connection to local street, local streets, short cuts as well as specifying pedestrian crossing and its accessories.
               2.  Take into consideration the suitability of the foot path, road, and building entrance and exit.
               3.  Survey, design and estimate the traffic signs, traffic lights and safety tools needed to be produced, installed, moved, dismantled and maintenance. As well as organizing traffic system and facilities for the disabled and elderly people.
               4.  Provide an emergency sector for traffic engineering and traffic light.
               5.  Implement actions on asset violation misconduct.
               6.  Assist in technical and academic studies, research, analysis and application on new and advance tools and innovation related to traffic solution.
               7.  Propose issuing traffic officer regulation.
               8.  Manage traffic and support traffic officer work on legal basis.
               9.  Other related or assigned duties.
The work could be divided as follows:
                  The General Administration Section has the following authorities:
                              1.  Correspondence and general administration
                              2.  Personnel and disciplinary
                              3.  Budgeting, financing and accounting
                              4.  Supply work
                              5.  Public relations
                              6.  Planning
                              7.  Administration and coordination, conference, secretarial work 
                              8.  Premises and vehicle supervision work
                              9.  Other related or assigned duties
                              
                   The Traffic System Design Section has the following authorities:
                              1.  Take into consideration the traffic system as well as survey, design, estimate traffic tools needed to be installed and maintained. Implement new traffic engineering regulations and tools.
                              2.  Establish traffic engineering standard and road equipment standard.
                              3.  Develop local street and short cut connections. Specify pedestrian crossing and pedestrian crossing bridge location to be constructed together with its necessary accessories. Examine the suitability of the foot path, road and building entrance and exit.
                              4.  Survey, design, estimate, supervise and direct the installation dismantling, moving and maintaining traffic lights and its operation system.
                              5.  Investigate, analyze and examine the suitability of the traffic light system, and supply and apply advanced tools in managing and solving traffic problems.
                              6. 
Other related or assigned duties.
This could be divided into:
                                      The Planning and Design Office 1 has the following authorities:
                                                    1.  Take into consideration organizing suitable traffic system, merging road, diverging road, traffic directions, traffic lanes, and U-turns.
                                                    2.  Establish traffic engineering standard and road equipment standard.
                                                    3.  Survey, design, estimate, install, provide, move, dismantle, maintain road equipment.
                                                    4.  Develop connection to local roads and short cuts and specifying pedestrian crossing and crossing bridge location together with other accessories.
                                                    5.  Propose regulations on traffic personnel according to the Road Traffic Act and other related laws.
                                                    6.  Examine the suitability of the footpath, road and buildings entrances and exits.
                                                    7.  Implement actions on asset violation misconduct.
                                                    8.  Implement new traffic measures and advance tools.
                                                    9.  Other related or assigned duties.
Covering 20 district as follows: Huai Khwang, Din Daeng, Chatuchak, Don Mueang, Dusit, Bang Sue, Ratchathewi, Lak Si, Phaya Thai, Bueng Kum, Min Buri, Lat Phrao, Bang Kapi, Bang Khen, Nong Chok, Sai Mai, Khan Na Yao, Saphan Sung, Wang Thonglang, Khlong Sam Wa

                                    The Planning and Design Office 2 has the following authorities:
                                                    1.  Take into consideration organizing suitable traffic system, merging road, diverging road, traffic directions, traffic lanes, and U-turns.
                                                    2.  Establish traffic engineering standard and road equipment standard.
                                                    3.  Survey, design, estimate, install, provide, move, dismantle, maintain road equipment.
                                                    4.  Develop connection to local roads and short cuts and specifying pedestrian crossing and crossing bridge location together with other accessories.
                                                    5.  Propose regulations on traffic personnel according to the Road Traffic Act and other related laws.
                                                    6.  Examine the suitability of the footpath, road and buildings entrances and exits.
                                                    7.  Engage on asset violation misconduct being charged.
                                                    8.  Implement new traffic measure and advance tools.
                                                    9.  Other related or assigned duties.
Covering 15 districts as follows: Bang Rak, Pathum Wan, Pom Prab Sattru Phai, Samphangtawong, Phra Nakorn, Khlong Toei, Prawet, Phra Khanong, Yan Nawa, Lat Krabang, Sathon, Suan Luuang, Bang Kho Laem, Watthana, Bang Na

                                   The Planning and Design Office 3 has the following authorities:
                                                    1.  Take into consideration organizing suitable traffic system, merging road, diverging road, traffic directions, traffic lanes, and U-turns.
                                                    2.  Establish traffic engineering standard and road equipment standard.
                                                    3.  Survey, design, estimate, install, provide, move, dismantle, maintain road equipment.
                                                    4.  Develop connection to local roads and short cuts and specifying pedestrian crossing and crossing bridge location together with other accessories.
                                                    5.  Propose regulations on traffic personnel according to the Road Traffic Act and other related laws.
                                                    6.  Examine the suitability of the footpath, road and buildings entrances and exits.
                                                    7.  Implement actions on asset violation misconduct.
                                                    8.  Implement new traffic measure and advance tools.
                                                    9.  Other related or assigned duties.
Covering 15 districts as follows: Taling Chan, Bangkok Noi, Bangkok Yai, Bang Phlat, Phasi Charoen, Nong Khaem, Thawi Watthana, Bang Khae, Khlong San, Chom Thong, Thon Buri, Bang Khun Thian, Rat Burana, Thung Khru, Bang Bon

                                  The Traffic Light Division has the following authorities:
                                                    1.  Survey, design, estimate, supervise and direct, install, move, dismantle, maintain traffic lights and its control device as well as it accessories to manage and solve traffic issue.
                                                    2.  Examine and analyze traffic light system suitability.
                                                    3.  Implement actions on asset violation misconduct.
                                                    4.  Provide coordinating sectors in receiving notification to deal with urgent traffic issues and other states of emergencies that could occur.
                                                    5.  Improve and develop traffic light standard report format.
                                                    6.  Provide and apply current tools and technology as well as new innovation to manage and solve traffic issue.
                                                    7.  Other related or assigned duties.

                   The Installation and Maintenance Section has the following authorities:
                             1.  Survey, design, estimate, supervise, direct, install, move, dismantle, change and maintain traffic signs to manage and solve traffic issues.
                             2.  Improve and
develop directory structure and traffic sign standard to be suitable and current, and to support public utility coordinator role.
                             3.  Implement actions on asset violation misconduct.
                             4.  Set up a Bangkok Emergency Service Team (BEST) to support traffic engineer and traffic management.
                             5.  Other related or assigned duties.
Which could be divided into:
                             The Traffic Sign Office 1 has the following authorities:
                                                    1.  Survey, design, draft drawings, estimate the production, install, move, dismantle, change and maintain traffic sign.
                                                    2.  Improve and develop directory structure and traffic sign standard to be suitable and current, and to support public utility coordinator role.
                                                    3.  Implement actions on asset violation misconduct.
                                                    4.  Set up a Bangkok Emergency Service Team (BEST) to support traffic engineer and traffic management.
                                                    5.  Other related or assigned duties.
Covering 20 district as follows: Huai Khwang, Din Daeng, Chatuchak, Don Mueang, Dusit, Bang Sue, Ratchathewi, Lak Si, Phaya Thai, Bueng Kum, Min Buri, Lat Phrao, Bang Kapi, Bang Khen, Nong Chok, Sai Mai, Khan Na Yao, Saphan Sung, Wang Thonglang, Khlong Sam Wa.

                             The Traffic Sign Office 2 has the following authorities:
                                                    1.  Survey, design, draft drawings, estimate the production, install, move, dismantle, change and maintain traffic sign.
                                                    2.  Improve and develop directory structure and traffic sign standard to be suitable and current, and to support public utility coordinator role.
                                                    3.  Implement actions on asset violation misconduct.
                                                    4.  Set up a Bangkok Emergency Service Team (BEST) to support traffic engineer and traffic management.
                                                    5.  Other related or assigned duties.
Covering 15 districts as follows: Bang Rak, Pathum Wan, Pom Prab Sattru Phai, Samphangtawong, Phra Nakorn, Khlong Toei, Prawet, Phra Khanong, Yan Nawa, Lat Krabang, Sathon, Suan Luuang, Bang Kho Laem, Watthana, Bang Na.

                             The Traffic Sign Office 3 has the following authorities:
                                                    1.  Survey, design, draft drawings, estimate the production, install, move, dismantle, change and maintain traffic sign.
                                                    2.  Improve and develop directory structure and traffic sign standard to be suitable and current, and to support public utility coordinator role.
                                                    3.  Implement actions on asset violation misconduct.
                                                    4.  Set up a Bangkok Emergency Service Team (BEST) to support traffic engineer and traffic management.
                                                    5.  Other related or assigned duties. 
Covering 15 districts as follows: Taling Chan, Bangkok Noi, Bangkok Yai, Bang Phlat, Phasi Charoen, Nong Khaem, Thawi Watthana, Bang Khae, Khlong San, Chom Thong, Thon Buri, Bang Khun Thian, Rat Burana, Thung Khru, Bang Bon.