Strategies for Improving Pedestrian Accessibility through Aerial Photogrammetry

Pedestrian accessibility in public infrastructure is crucial for the efficient and safe mobility of people. In Lima, during the COVID-19 pandemic, it was necessary to strategically plan the mobility of people in the network of Metropolitano stations.

This study was necessary because people needed to circulate with the least possible crowding, maximizing efficiency, and minimizing the risk of infections. Acero Estudio contributed its expertise in aerial photogrammetry, orthophotos, and GPS technologies to achieve this goal.

Study for Improving Pedestrian Accessibility in the Metropolitano

The Acero Estudio team in Peru conducted a conceptual study focused on the restitution and improvement of pedestrian accessibility at the Metropolitano stations in Lima. This project included the following tasks:

  • Geodesy
  • Drone flights
  • Restitution of the designated area
  • Presentation of results and improvement proposals

Methodology and Project Execution

Given the current COVID-19 pandemic situation, all activities were carried out under strict preventive measures and with the necessary medical examinations for the technicians involved in the project. The process was carried out in the following steps:

  1. Placement of Geodetic Points at each station
  2. Linking with the coordinate system of the National Geographic Institute (IGN)
  3. Measurement of points using differential GPS with dual frequency
  4. Location of support points for drone flight restitution
  5. Marking points and measuring with GPS
  6. Obtaining high-precision data in real-time

Drone Flight Execution and Data Processing

Drone flights were conducted over the 33 Metropolitano stations at an appropriate height, considering the height of buildings and other existing elements in the environment. For this, a DJI Phantom 4 Pro drone equipped with a 20-megapixel camera was used. The photogrammetric images obtained were processed to generate a point cloud and an orthophoto of each station.

Deliverables and Study Results

The results of this study provided an important working basis for both Metropolitano officials and city health policymakers to understand the objective situation and establish appropriate strategies to reduce infection rates and virus spread at the Metropolitano stations in Lima.

Contact Us, We Are Drone Photogrammetry Specialists

At Acero Estudio, we specialize in drone photogrammetry and LIDAR services. We perform our services with the highest technology on the market, promoting the development of engineering and architectural projects. Contact us and consult with us; we are at your service.

LIDAR Technology in natural disaster management

servicio de cartografia lidar

LIDAR (Light Detection and Ranging) technology has become democratized since the introduction of drones and their greater accessibility. This technology that uses laser pulses is highly reliable when it comes to capturing information about the environment. It has also been widely used in the management of natural disasters to apply mitigation measures in cases of earthquakes, floods, landslides and hurricanes.

One of the main applications of LIDAR is the assessment of geological risks. The models generated by LIDAR have high precision and help identify areas prone to landslides, land subsidence or geological faults that are not noticeable to the naked eye. These measurements allow authorities to take preventive measures to protect nearby cities or communities.

LIDAR technology is also used for flood monitoring. This is important in places where seasonal flooding occurs because due to climate change many flood-prone areas can overflow, generating major problems even with significant risks to the lives of the inhabitants of the affected areas. LIDAR scanning helps us facilitate emergency response actions and recovery planning.

Regarding earthquakes, LIDAR is used to evaluate structural damage and ground deformation caused by the telluric event. It also helps us determine if geological areas that represent risks to nearby populations have been affected.

It is worth noting that the accuracy of LIDAR sensors is effective even in areas of extensive vegetation, so the importance of this technology plays a vital role that governments and mitigation and prevention policy makers should take into account.

Contact Acero Estudio and request information about our LIDAR services, we are here to help you develop the potential of your projects.

LIDAR and its Benefits for Infrastructure Construction

beneficios de la tecnologia lidar

LIDAR (Light Detection and Ranging) technology is a fundamental tool in the infrastructure construction industry. Thanks to its laser pulses, it helps us measure distances, depth differences in the terrain and of course the creation of precise three-dimensional models of a studied area. In this article we will try to review the benefits of LIDAR technology for the construction of infrastructure.

Accurate terrain mapping

With LIDAR technology our engineers can create detailed topographic maps of any terrain, which is essential for planning infrastructure construction projects. Thanks to a record generated with LIDAR, your project can have precise information about the elevation of the terrain, slope and surrounding vegetation.

This information will be of great help to take advantage of the geographical advantages of any area as well as avoid risks in the construction and design of roads, bridges, dams and other projects.

Obstacle detection

One of the most important benefits of LIDAR is its ability to detect and map obstacles even in areas with lush vegetation or areas with buildings or electrical cables. This is crucial to ensure the safety of construction, workers and avoiding problems with existing structures.

Efficient design and planning

LIDAR helps us have accurate data that allows engineers and architects to carry out more efficient infrastructure design. Having a detailed understanding of the terrain and obstacles can improve road alignment, the location of bridge piers, and also the layout of underground infrastructure.

Advantages of LIDAR for Quality Control and Project Monitoring

Take into consideration that the advantages of LIDAR are not only appropriate before the execution of projects but also during and after for quality control tasks, monitoring the resistance of structures, etc. And with respect to infrastructure projects, it is worth noting that LIDAR has been used successfully in a wide range of construction projects such as:

  • Construction of roads and highways.
  • Flood management and drainage infrastructure.
  • Monitoring of electrical transmission lines.
  • Urban planification.

Now that you know more about the advantages and benefits of LIDAR, we invite you to contact us about our LIDAR services. Contact us today, we are here to support you.