The issue of climate change has become one of the most pressing challenges that humanity faces today.

With the rise of industrialization, human activities have caused significant harm to the planet, resulting in various natural disasters, including glacial melting, heat waves, heavy rainfall, flooding, and unusual weather patterns.

To combat climate change, controlling carbon emissions is critical, and achieving carbon neutrality is a necessary step in the right direction.

According to the "Climate Change 2021: The Natural Science Basis" report published by the United Nations Intergovernmental Panel on Climate Change (IPCC), the global average temperature has risen by 1.1˚C since the mid-1800s.

The report emphasizes that the key to mitigating climate change is to control carbon emissions. It is a fact that the transportation industry is one of the fastest-growing sectors in cities in terms of greenhouse gas emissions.

Therefore, to help achieve the goals of the Paris Agreement, the transportation industry in cities must achieve net-zero GHG emissions as early as possible.

The primary objective of achieving net-zero emissions is to balance greenhouse gas removals with greenhouse gas emissions, making overall net emissions zero. This is a daunting task, and many countries and companies worldwide have set "net-zero" targets to address climate change.

Urbanization, coupled with the transformation and upgrading of the economic structure, has made the transportation industry a vital sector in the fight against climate change.

To achieve net-zero emissions in the transportation sector, cities must first establish a refined carbon emission accounting system and conduct scientific path analysis studies.

The paper summarizes and organizes the research methodology based on the experience of conducting emission pathway analysis in the transportation industry in several cities. It provides specific suggestions on scenarios and parameter settings for city management to reference.

The policy measures with high potential for emission reduction are the adoption of new energy sources, development of multimodal transport, promotion of energy-saving technologies, and improvement of fuel quality. Rational urban planning, optimization of freight transport, bus priority measures, and setting low carbon standards will also play a role in reducing emissions.

However, the adoption of new energy sources and fuel quality improvement measures require technological breakthroughs and policy support from the industry as a whole.

The comparison shows that the emission reduction potential of industry-led policy measures is generally higher than that of localized measures led by city governments.

Although achieving net-zero emissions in the transportation sector is extremely challenging, cities must start with energy efficiency improvements in all modes of transportation and intra-city and inter-city transportation restructuring in the near term.

Vigorous promotion of electrified transportation and development of zero-emission fuels for long-distance transportation in the medium to long term, complemented by carbon sequestration, are necessary to achieve the medium to the long-term vision of net-zero emissions in the transportation sector.

Achieving net-zero emissions in the transportation industry is a daunting task. However, it is an essential step to combat climate change. Therefore, cities must take immediate steps to implement energy efficiency measures, promote electrified transportation, develop zero-emission fuels, and establish low carbon standards.

The adoption of new energy sources and fuel quality improvement measures must also be prioritized.