Urban elements, as key components in the design of public spaces, play a significant role in beautification, reinforcing local identity, and conveying cultural-social values. They can also become urban symbols and identifiers. calligraphy and typography in urban art serve roles beyond textual communication, contributing to cultural identity, environmental aesthetics, and social interaction in public spaces. This research examines the application of calligraphy and typography in designing these elements and their impact on aesthetics, identity creation, and functionality. The main research questions are: 1) How have calligraphy and typography been applied in the design of urban elements? 2) What are the functional differences between Iranian and international urban elements derived from calligraphy and typography? Previous studies related to calligraphy and the use of typography in urban arts have focused on two main categories: formal aesthetics and content analysis—specifically national identity. The primary aim of this study is to identify the potential of calligraphy and typography in shaping urban spaces and creating distinct identities within them. The research method is descriptive-analytical, employing comparative analysis to evaluate the visual form and content of selected works. Data were collected through field and library studies, with a statistical population comprising twelve urban elements from different regions of Iran and the world that incorporate line and typography, ensuring maximum diversity in form and content.In analysing the samples, urban elements were evaluated based on three criteria: function (representational, expressive, utilitarian), visual form (figurative, non-figurative: typographic), and viewing angle (single-angle, multi-angle). In the next step, their form and content were compared.The "BUS" bus stop in Maryland, USA, functions not only as a typographic art sculpture but also as urban furniture and an interactive space for sitting and waiting at the bus stop. Beyond its aesthetic value, this work has practical functionality, serving as a resting area and shelter against weather conditions.The "Alphabet Climbing Wall" is an example of urban elements with an educational identity function, designed for play areas and educational environments. This creative structure introduces children to the alphabet interactively while enhancing motor skills, coordination, physical readiness, and muscle development. It integrates education and entertainment, using bright and warm colours to create an attractive and interactive environment for literacy development.Typography in urban art has the potential to create identity and transform elements into urban landmarks. In the design of the "Museum of the Future", the exterior facade uses curved Thuluth script, harmonising with the structure and conveying depth perception, doubling the aesthetic appeal. The text on the body is designed typographically, symbolising innovation, progress, and future aspirations, aligning with the museum's mission to explore technology, science, and humanity. This artistic design respects Arabic calligraphy while presenting Emirati cultural identity in a modern format.The "Mirror" installation in Texas exemplifies the use of typography for social purposes in urban spaces. This sculpture, combining white letters from various alphabets, conveys a message of human unity, emphasising that humans mirror each other and share common roots. Designed to create visual calm and harmony with the environment, it allows audiences to physically interact with it. The work symbolises globalism, cultural diversity, and the power of language in fostering cross-cultural communication. It serves representational, expressive, and utilitarian functions, aiming to explore language and communication as tools for unity and mutual understanding.Some urban elements transcend their functional roles to become symbols. The "LOVE" typographic sculpture is recognised not only as a symbol of love but also as a message of human solidarity and hope in public spaces. It has been recreated in various forms, including postage stamps and jewelry.Interactive typography in some urban elements, such as the three-dimensional "Hello" installation, often sparks curiosity and interaction in audiences, creating a dynamic and engaging urban environment by offering a new experience.An example of combining typography and urban art is the "Type Character" project in Rotterdam, Netherlands, which creatively addresses societal needs and urban contexts. Designed to create an interactive and visually appealing space for the community, especially to support skateboarding culture, it highlights the importance of letter forms and functional proportionality.Some urban elements represent different styles and evoke specific feelings in the audience beyond their written content. The "Ha Ha Ha" sculpture, created in 2019, focuses on laughter and joy, reflecting Philippe Berry's unique style inspired by pop art and neo-realism. The use of red colour, combined with playful and abstract forms, emphasises happiness and laughter. The overall work evokes expressionist art.In most Iranian urban elements, the application of line and typography primarily includes representational and expressive aspects. These works are often designed using traditional scripts like Nasta'liq, Shekasteh-Nasta'liq, Thuluth, and Naskh, with religious or ceremonial themes. A notable example is the urban element at Shams Tabrizi's mausoleum in Khoy, where the poet's name is inscribed in Nasta'liq alongside geometric and floral patterns, evoking nostalgia and national identity. Similar works with religious themes, such as symbols of Imam Reza, appear temporarily or permanently in various Iranian cities during occasions. These elements are typically two-dimensional and readable from only one angle.Kufic architectural script, known for its geometric forms, spatial balance, and compatibility with architecture, holds a special place in Islamic art and Iranian brickwork. Today, it is used in urban elements with religious themes, such as "Bismillah," combining traditional writing with modern sculpture to create a strong visual impact. However, issues like reduced readability from multiple angles and sharp edges negatively affect their interactive functionality and identity-building potential.Urban squares, as focal nodes, shape visual and spatial identity. In Zahedan’s Imam Ali Square, the design emphasises visual and structural aspects over readability. Considering the mounted audience, readability is secondary, prioritising aesthetics. The four-sided design allows readability from different angles, but the use of dark, neutral colours reduces visual dynamism.The "pictorial script" style, a historical Iranian typographic technique, places letters within a visual form. The "Mahi Nowruz" element in Mashhad exemplifies this style, combining the red fish and New Year prayers to create a ceremonial urban feature. The red colour, symbolizing joy and warmth, enhances readability, while the Naskh script conveys sanctity and reflects Mashhad's historical and religious identity. However, limited readability from certain angles remains a weakness.An analysis of Iranian works shows that the use of traditional scripts like Nasta'liq and Thuluth reflects historical and cultural identity but has limitations in readability, particularly for non-Iranian audiences. In contrast, international works emphasise minimalist designs and high readability, fostering greater interaction with audiences and focusing on universal concepts like unity and human connection. Comparative analysis reveals that domestic elements often prioritise representational and expressive aspects, while international works also consider utilitarian and interactive functions. Shared features include the use of three-dimensional typography, play with positive and negative space, and attention to colour contrast. However, neglecting proper lighting, scale, and environmental harmony in some domestic works are considered weaknesses. Ultimately, creatively combining traditional art with modern design techniques can lead to elements that are aesthetically appealing and responsive to cultural and social needs of urban spaces. Attention to design standards, readability, and audience interaction, especially in utilitarian works, is essential for urban element design. The results indicate that line and typography, combined with creative design, can meet the aesthetic, cultural, and functional needs of urban spaces, strengthening urban identity and enhancing the quality of public spaces.